Home / 129,668,281.96-194,516,044.88-42,236,612.38

Finding the Fourth Proportional to 129,668,281.96, 194,516,044.88 and 42,236,612.38

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Solution

The fourth proportional to 129,668,281.96, 194,516,044.88 and 42,236,612.38 is: 63,359,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,668,281.96 : 194,516,044.88 = 42,236,612.38 : x
  2. Step 2: Convert to fraction form
    129,668,281.96/194,516,044.88 = 42,236,612.38/x
  3. Step 3: Cross multiply
    129,668,281.96x = 194,516,044.88 × 42,236,612.38
  4. Step 4: Simplify right side
    129,668,281.96x = 8,215,698,789,984,835
  5. Step 5: Solve for x
    x = 8,215,698,789,984,835/129,668,281.96
  6. Step 6: Final answer
    x = 63,359,355.62

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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.