Home / 138,759,377.33-208,151,909.15-45,386,878.98

Finding the Fourth Proportional to 138,759,377.33, 208,151,909.15 and 45,386,878.98

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Solution

The fourth proportional to 138,759,377.33, 208,151,909.15 and 45,386,878.98 is: 68,084,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,377.33 : 208,151,909.15 = 45,386,878.98 : x
  2. Step 2: Convert to fraction form
    138,759,377.33/208,151,909.15 = 45,386,878.98/x
  3. Step 3: Cross multiply
    138,759,377.33x = 208,151,909.15 × 45,386,878.98
  4. Step 4: Simplify right side
    138,759,377.33x = 9,447,365,509,820,070
  5. Step 5: Solve for x
    x = 9,447,365,509,820,070/138,759,377.33
  6. Step 6: Final answer
    x = 68,084,519.35

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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.