Home / 145,675,346.10-218,513,019.15-99,758,843.70

Finding the Fourth Proportional to 145,675,346.10, 218,513,019.15 and 99,758,843.70

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Solution

The fourth proportional to 145,675,346.10, 218,513,019.15 and 99,758,843.70 is: 149,638,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,675,346.10 : 218,513,019.15 = 99,758,843.70 : x
  2. Step 2: Convert to fraction form
    145,675,346.10/218,513,019.15 = 99,758,843.70/x
  3. Step 3: Cross multiply
    145,675,346.10x = 218,513,019.15 × 99,758,843.70
  4. Step 4: Simplify right side
    145,675,346.10x = 21,798,606,123,799,960
  5. Step 5: Solve for x
    x = 21,798,606,123,799,960/145,675,346.10
  6. Step 6: Final answer
    x = 149,638,265.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.