Home / 80,411,988.92-120,668,999.93-34,354,204.95

Finding the Fourth Proportional to 80,411,988.92, 120,668,999.93 and 34,354,204.95

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Solution

The fourth proportional to 80,411,988.92, 120,668,999.93 and 34,354,204.95 is: 51,553,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,411,988.92 : 120,668,999.93 = 34,354,204.95 : x
  2. Step 2: Convert to fraction form
    80,411,988.92/120,668,999.93 = 34,354,204.95/x
  3. Step 3: Cross multiply
    80,411,988.92x = 120,668,999.93 × 34,354,204.95
  4. Step 4: Simplify right side
    80,411,988.92x = 4,145,487,554,706,756.50
  5. Step 5: Solve for x
    x = 4,145,487,554,706,756.50/80,411,988.92
  6. Step 6: Final answer
    x = 51,553,103.09

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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.