Home / 1,008,869,171.10-1,513,303,756.65-619,429,206.30

Finding the Fourth Proportional to 1,008,869,171.10, 1,513,303,756.65 and 619,429,206.30

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Solution

The fourth proportional to 1,008,869,171.10, 1,513,303,756.65 and 619,429,206.30 is: 929,143,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,869,171.10 : 1,513,303,756.65 = 619,429,206.30 : x
  2. Step 2: Convert to fraction form
    1,008,869,171.10/1,513,303,756.65 = 619,429,206.30/x
  3. Step 3: Cross multiply
    1,008,869,171.10x = 1,513,303,756.65 × 619,429,206.30
  4. Step 4: Simplify right side
    1,008,869,171.10x = 937,384,544,872,517,888
  5. Step 5: Solve for x
    x = 937,384,544,872,517,888/1,008,869,171.10
  6. Step 6: Final answer
    x = 929,143,809.45

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Half scale
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Double scale
Find fourth proportional to 1,008,869,172.10, 1,513,303,758.15 and 619,429,207.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.