Home / 1,213,147,715.10-1,819,721,572.65-662,149,686.30

Finding the Fourth Proportional to 1,213,147,715.10, 1,819,721,572.65 and 662,149,686.30

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Solution

The fourth proportional to 1,213,147,715.10, 1,819,721,572.65 and 662,149,686.30 is: 993,224,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,147,715.10 : 1,819,721,572.65 = 662,149,686.30 : x
  2. Step 2: Convert to fraction form
    1,213,147,715.10/1,819,721,572.65 = 662,149,686.30/x
  3. Step 3: Cross multiply
    1,213,147,715.10x = 1,819,721,572.65 × 662,149,686.30
  4. Step 4: Simplify right side
    1,213,147,715.10x = 1,204,928,068,483,540,224
  5. Step 5: Solve for x
    x = 1,204,928,068,483,540,224/1,213,147,715.10
  6. Step 6: Final answer
    x = 993,224,529.45

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Double scale
Find fourth proportional to 1,213,147,716.10, 1,819,721,574.15 and 662,149,687.30
Similar ratio
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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.