Home / 118,864,987.60-178,129,519.80-73,291,406.80

Finding the Fourth Proportional to 118,864,987.60, 178,129,519.80 and 73,291,406.80

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Solution

The fourth proportional to 118,864,987.60, 178,129,519.80 and 73,291,406.80 is: 109,833,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,864,987.60 : 178,129,519.80 = 73,291,406.80 : x
  2. Step 2: Convert to fraction form
    118,864,987.60/178,129,519.80 = 73,291,406.80/x
  3. Step 3: Cross multiply
    118,864,987.60x = 178,129,519.80 × 73,291,406.80
  4. Step 4: Simplify right side
    118,864,987.60x = 13,055,363,098,750,454
  5. Step 5: Solve for x
    x = 13,055,363,098,750,454/118,864,987.60
  6. Step 6: Final answer
    x = 109,833,546.13

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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.