Home / 1,122,339,815.60-1,683,509,723.40-510,119,783.60

Finding the Fourth Proportional to 1,122,339,815.60, 1,683,509,723.40 and 510,119,783.60

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Solution

The fourth proportional to 1,122,339,815.60, 1,683,509,723.40 and 510,119,783.60 is: 765,179,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,339,815.60 : 1,683,509,723.40 = 510,119,783.60 : x
  2. Step 2: Convert to fraction form
    1,122,339,815.60/1,683,509,723.40 = 510,119,783.60/x
  3. Step 3: Cross multiply
    1,122,339,815.60x = 1,683,509,723.40 × 510,119,783.60
  4. Step 4: Simplify right side
    1,122,339,815.60x = 858,791,615,789,303,936
  5. Step 5: Solve for x
    x = 858,791,615,789,303,936/1,122,339,815.60
  6. Step 6: Final answer
    x = 765,179,675.40

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Half scale
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Double scale
Find fourth proportional to 1,122,339,816.60, 1,683,509,724.90 and 510,119,784.60
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.