Home / 78,872,179.80-118,308,269.70-36,404,851.80

Finding the Fourth Proportional to 78,872,179.80, 118,308,269.70 and 36,404,851.80

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Solution

The fourth proportional to 78,872,179.80, 118,308,269.70 and 36,404,851.80 is: 54,607,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,872,179.80 : 118,308,269.70 = 36,404,851.80 : x
  2. Step 2: Convert to fraction form
    78,872,179.80/118,308,269.70 = 36,404,851.80/x
  3. Step 3: Cross multiply
    78,872,179.80x = 118,308,269.70 × 36,404,851.80
  4. Step 4: Simplify right side
    78,872,179.80x = 4,306,995,025,142,930
  5. Step 5: Solve for x
    x = 4,306,995,025,142,930/78,872,179.80
  6. Step 6: Final answer
    x = 54,607,277.70

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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.