Home / 118,862,080.80-178,293,121.20-42,192,859.20

Finding the Fourth Proportional to 118,862,080.80, 178,293,121.20 and 42,192,859.20

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Solution

The fourth proportional to 118,862,080.80, 178,293,121.20 and 42,192,859.20 is: 63,289,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,862,080.80 : 178,293,121.20 = 42,192,859.20 : x
  2. Step 2: Convert to fraction form
    118,862,080.80/178,293,121.20 = 42,192,859.20/x
  3. Step 3: Cross multiply
    118,862,080.80x = 178,293,121.20 × 42,192,859.20
  4. Step 4: Simplify right side
    118,862,080.80x = 7,522,696,559,120,135
  5. Step 5: Solve for x
    x = 7,522,696,559,120,135/118,862,080.80
  6. Step 6: Final answer
    x = 63,289,288.80

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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.