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Finding the Third Proportional to 272,926,536 and 390,287,641.50

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Solution

The third proportional to 272,926,536 and 390,287,641.50 is: 558,115,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,926,536 : 390,287,641.50 = 390,287,641.50 : x
  2. Step 2: Convert to fraction form
    272,926,536/390,287,641.50 = 390,287,641.50/x
  3. Step 3: Cross multiply
    272,926,536x = 390,287,641.50 × 390,287,641.50
  4. Step 4: Simplify right side
    272,926,536x = 152,324,443,107,632,512
  5. Step 5: Solve for x
    x = 152,324,443,107,632,512/272,926,536
  6. Step 6: Final answer
    x = 558,115,181.25

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.