Home / 1,570,570,861.52-2,167,484,757.96-865,721,253.20

Finding the Fourth Proportional to 1,570,570,861.52, 2,167,484,757.96 and 865,721,253.20

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Solution

The fourth proportional to 1,570,570,861.52, 2,167,484,757.96 and 865,721,253.20 is: 1,194,748,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,570,861.52 : 2,167,484,757.96 = 865,721,253.20 : x
  2. Step 2: Convert to fraction form
    1,570,570,861.52/2,167,484,757.96 = 865,721,253.20/x
  3. Step 3: Cross multiply
    1,570,570,861.52x = 2,167,484,757.96 × 865,721,253.20
  4. Step 4: Simplify right side
    1,570,570,861.52x = 1,876,437,620,953,029,888
  5. Step 5: Solve for x
    x = 1,876,437,620,953,029,888/1,570,570,861.52
  6. Step 6: Final answer
    x = 1,194,748,780.16

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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.