Home / 78,339,266.80-117,508,900.20-24,486,492.40

Finding the Fourth Proportional to 78,339,266.80, 117,508,900.20 and 24,486,492.40

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Solution

The fourth proportional to 78,339,266.80, 117,508,900.20 and 24,486,492.40 is: 36,729,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,339,266.80 : 117,508,900.20 = 24,486,492.40 : x
  2. Step 2: Convert to fraction form
    78,339,266.80/117,508,900.20 = 24,486,492.40/x
  3. Step 3: Cross multiply
    78,339,266.80x = 117,508,900.20 × 24,486,492.40
  4. Step 4: Simplify right side
    78,339,266.80x = 2,877,380,791,679,658.50
  5. Step 5: Solve for x
    x = 2,877,380,791,679,658.50/78,339,266.80
  6. Step 6: Final answer
    x = 36,729,738.60

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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.