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Finding the Third Proportional to 119,128,947.75 and 258,039,432

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Solution

The third proportional to 119,128,947.75 and 258,039,432 is: 558,926,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,128,947.75 : 258,039,432 = 258,039,432 : x
  2. Step 2: Convert to fraction form
    119,128,947.75/258,039,432 = 258,039,432/x
  3. Step 3: Cross multiply
    119,128,947.75x = 258,039,432 × 258,039,432
  4. Step 4: Simplify right side
    119,128,947.75x = 66,584,348,466,882,624
  5. Step 5: Solve for x
    x = 66,584,348,466,882,624/119,128,947.75
  6. Step 6: Final answer
    x = 558,926,690.15

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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.