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Finding the Third Proportional to 76,572,031.50 and 168,021,981

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Solution

The third proportional to 76,572,031.50 and 168,021,981 is: 368,690,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,572,031.50 : 168,021,981 = 168,021,981 : x
  2. Step 2: Convert to fraction form
    76,572,031.50/168,021,981 = 168,021,981/x
  3. Step 3: Cross multiply
    76,572,031.50x = 168,021,981 × 168,021,981
  4. Step 4: Simplify right side
    76,572,031.50x = 28,231,386,099,164,360
  5. Step 5: Solve for x
    x = 28,231,386,099,164,360/76,572,031.50
  6. Step 6: Final answer
    x = 368,690,572.08

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.