Home / 811,123,903.55-1,119,397,899.12-453,888,562.13

Finding the Fourth Proportional to 811,123,903.55, 1,119,397,899.12 and 453,888,562.13

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Solution

The fourth proportional to 811,123,903.55, 1,119,397,899.12 and 453,888,562.13 is: 626,392,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,123,903.55 : 1,119,397,899.12 = 453,888,562.13 : x
  2. Step 2: Convert to fraction form
    811,123,903.55/1,119,397,899.12 = 453,888,562.13/x
  3. Step 3: Cross multiply
    811,123,903.55x = 1,119,397,899.12 × 453,888,562.13
  4. Step 4: Simplify right side
    811,123,903.55x = 508,081,902,879,841,024
  5. Step 5: Solve for x
    x = 508,081,902,879,841,024/811,123,903.55
  6. Step 6: Final answer
    x = 626,392,466.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.