Home / 84,011,401.20-126,017,101.80-49,432,306.80

Finding the Fourth Proportional to 84,011,401.20, 126,017,101.80 and 49,432,306.80

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Solution

The fourth proportional to 84,011,401.20, 126,017,101.80 and 49,432,306.80 is: 74,148,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,011,401.20 : 126,017,101.80 = 49,432,306.80 : x
  2. Step 2: Convert to fraction form
    84,011,401.20/126,017,101.80 = 49,432,306.80/x
  3. Step 3: Cross multiply
    84,011,401.20x = 126,017,101.80 × 49,432,306.80
  4. Step 4: Simplify right side
    84,011,401.20x = 6,229,316,038,224,432
  5. Step 5: Solve for x
    x = 6,229,316,038,224,432/84,011,401.20
  6. Step 6: Final answer
    x = 74,148,460.20

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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.