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Finding the Third Proportional to 115,046,439 and 155,485,785

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Solution

The third proportional to 115,046,439 and 155,485,785 is: 210,139,744.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,046,439 : 155,485,785 = 155,485,785 : x
  2. Step 2: Convert to fraction form
    115,046,439/155,485,785 = 155,485,785/x
  3. Step 3: Cross multiply
    115,046,439x = 155,485,785 × 155,485,785
  4. Step 4: Simplify right side
    115,046,439x = 24,175,829,337,066,224
  5. Step 5: Solve for x
    x = 24,175,829,337,066,224/115,046,439
  6. Step 6: Final answer
    x = 210,139,744.85

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.