Home / 99,814,000.20-149,721,000.30-68,909,065.80

Finding the Fourth Proportional to 99,814,000.20, 149,721,000.30 and 68,909,065.80

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Solution

The fourth proportional to 99,814,000.20, 149,721,000.30 and 68,909,065.80 is: 103,363,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,814,000.20 : 149,721,000.30 = 68,909,065.80 : x
  2. Step 2: Convert to fraction form
    99,814,000.20/149,721,000.30 = 68,909,065.80/x
  3. Step 3: Cross multiply
    99,814,000.20x = 149,721,000.30 × 68,909,065.80
  4. Step 4: Simplify right side
    99,814,000.20x = 10,317,134,261,314,520
  5. Step 5: Solve for x
    x = 10,317,134,261,314,520/99,814,000.20
  6. Step 6: Final answer
    x = 103,363,598.70

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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.