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Finding the Third Proportional to 145,429,139 and 311,013,670

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Solution

The third proportional to 145,429,139 and 311,013,670 is: 665,131,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,429,139 : 311,013,670 = 311,013,670 : x
  2. Step 2: Convert to fraction form
    145,429,139/311,013,670 = 311,013,670/x
  3. Step 3: Cross multiply
    145,429,139x = 311,013,670 × 311,013,670
  4. Step 4: Simplify right side
    145,429,139x = 96,729,502,926,868,896
  5. Step 5: Solve for x
    x = 96,729,502,926,868,896/145,429,139
  6. Step 6: Final answer
    x = 665,131,510.73

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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.