Home / 280,272,581.46-386,779,408.56-154,822,178.52

Finding the Fourth Proportional to 280,272,581.46, 386,779,408.56 and 154,822,178.52

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Solution

The fourth proportional to 280,272,581.46, 386,779,408.56 and 154,822,178.52 is: 213,656,399.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,272,581.46 : 386,779,408.56 = 154,822,178.52 : x
  2. Step 2: Convert to fraction form
    280,272,581.46/386,779,408.56 = 154,822,178.52/x
  3. Step 3: Cross multiply
    280,272,581.46x = 386,779,408.56 × 154,822,178.52
  4. Step 4: Simplify right side
    280,272,581.46x = 59,882,030,639,936,344
  5. Step 5: Solve for x
    x = 59,882,030,639,936,344/280,272,581.46
  6. Step 6: Final answer
    x = 213,656,399.52

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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.