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Finding the Third Proportional to 59,542,959 and 128,980,113

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Solution

The third proportional to 59,542,959 and 128,980,113 is: 279,392,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,542,959 : 128,980,113 = 128,980,113 : x
  2. Step 2: Convert to fraction form
    59,542,959/128,980,113 = 128,980,113/x
  3. Step 3: Cross multiply
    59,542,959x = 128,980,113 × 128,980,113
  4. Step 4: Simplify right side
    59,542,959x = 16,635,869,549,492,768
  5. Step 5: Solve for x
    x = 16,635,869,549,492,768/59,542,959
  6. Step 6: Final answer
    x = 279,392,724.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.