Home / 117,115,428.65-161,417,560.47-77,887,111.24

Finding the Fourth Proportional to 117,115,428.65, 161,417,560.47 and 77,887,111.24

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Solution

The fourth proportional to 117,115,428.65, 161,417,560.47 and 77,887,111.24 is: 107,350,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115,428.65 : 161,417,560.47 = 77,887,111.24 : x
  2. Step 2: Convert to fraction form
    117,115,428.65/161,417,560.47 = 77,887,111.24/x
  3. Step 3: Cross multiply
    117,115,428.65x = 161,417,560.47 × 77,887,111.24
  4. Step 4: Simplify right side
    117,115,428.65x = 12,572,347,487,609,228
  5. Step 5: Solve for x
    x = 12,572,347,487,609,228/117,115,428.65
  6. Step 6: Final answer
    x = 107,350,053.13

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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.