Home / 151,345,457.72-208,856,727.94-81,730,832.90

Finding the Fourth Proportional to 151,345,457.72, 208,856,727.94 and 81,730,832.90

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Solution

The fourth proportional to 151,345,457.72, 208,856,727.94 and 81,730,832.90 is: 112,788,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,345,457.72 : 208,856,727.94 = 81,730,832.90 : x
  2. Step 2: Convert to fraction form
    151,345,457.72/208,856,727.94 = 81,730,832.90/x
  3. Step 3: Cross multiply
    151,345,457.72x = 208,856,727.94 × 81,730,832.90
  4. Step 4: Simplify right side
    151,345,457.72x = 17,070,034,331,304,902
  5. Step 5: Solve for x
    x = 17,070,034,331,304,902/151,345,457.72
  6. Step 6: Final answer
    x = 112,788,547.40

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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.