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Finding the Third Proportional to 145,429,129 and 311,013,650

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Solution

The third proportional to 145,429,129 and 311,013,650 is: 665,131,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,429,129 : 311,013,650 = 311,013,650 : x
  2. Step 2: Convert to fraction form
    145,429,129/311,013,650 = 311,013,650/x
  3. Step 3: Cross multiply
    145,429,129x = 311,013,650 × 311,013,650
  4. Step 4: Simplify right side
    145,429,129x = 96,729,490,486,322,496
  5. Step 5: Solve for x
    x = 96,729,490,486,322,496/145,429,129
  6. Step 6: Final answer
    x = 665,131,470.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.