Home / 374,475,987.20-561,715,730.40-132,138,891.20

Finding the Fourth Proportional to 374,475,987.20, 561,715,730.40 and 132,138,891.20

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Solution

The fourth proportional to 374,475,987.20, 561,715,730.40 and 132,138,891.20 is: 198,208,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,475,987.20 : 561,715,730.40 = 132,138,891.20 : x
  2. Step 2: Convert to fraction form
    374,475,987.20/561,715,730.40 = 132,138,891.20/x
  3. Step 3: Cross multiply
    374,475,987.20x = 561,715,730.40 × 132,138,891.20
  4. Step 4: Simplify right side
    374,475,987.20x = 74,224,493,784,654,128
  5. Step 5: Solve for x
    x = 74,224,493,784,654,128/374,475,987.20
  6. Step 6: Final answer
    x = 198,208,954.17

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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.