Home / 188,291,990.72-259,913,432.96-141,384,569.20

Finding the Fourth Proportional to 188,291,990.72, 259,913,432.96 and 141,384,569.20

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Solution

The fourth proportional to 188,291,990.72, 259,913,432.96 and 141,384,569.20 is: 195,163,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,291,990.72 : 259,913,432.96 = 141,384,569.20 : x
  2. Step 2: Convert to fraction form
    188,291,990.72/259,913,432.96 = 141,384,569.20/x
  3. Step 3: Cross multiply
    188,291,990.72x = 259,913,432.96 × 141,384,569.20
  4. Step 4: Simplify right side
    188,291,990.72x = 36,747,748,748,342,680
  5. Step 5: Solve for x
    x = 36,747,748,748,342,680/188,291,990.72
  6. Step 6: Final answer
    x = 195,163,631.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.