Home / 281,418,894.14-388,358,111.40-155,979,179.90

Finding the Fourth Proportional to 281,418,894.14, 388,358,111.40 and 155,979,179.90

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Solution

The fourth proportional to 281,418,894.14, 388,358,111.40 and 155,979,179.90 is: 215,251,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,418,894.14 : 388,358,111.40 = 155,979,179.90 : x
  2. Step 2: Convert to fraction form
    281,418,894.14/388,358,111.40 = 155,979,179.90/x
  3. Step 3: Cross multiply
    281,418,894.14x = 388,358,111.40 × 155,979,179.90
  4. Step 4: Simplify right side
    281,418,894.14x = 60,575,779,723,684,840
  5. Step 5: Solve for x
    x = 60,575,779,723,684,840/281,418,894.14
  6. Step 6: Final answer
    x = 215,251,289.04

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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.