Home / 260,808,212.20-391,212,318.30-79,031,770.60

Finding the Fourth Proportional to 260,808,212.20, 391,212,318.30 and 79,031,770.60

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Solution

The fourth proportional to 260,808,212.20, 391,212,318.30 and 79,031,770.60 is: 118,547,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,808,212.20 : 391,212,318.30 = 79,031,770.60 : x
  2. Step 2: Convert to fraction form
    260,808,212.20/391,212,318.30 = 79,031,770.60/x
  3. Step 3: Cross multiply
    260,808,212.20x = 391,212,318.30 × 79,031,770.60
  4. Step 4: Simplify right side
    260,808,212.20x = 30,918,202,195,779,780
  5. Step 5: Solve for x
    x = 30,918,202,195,779,780/260,808,212.20
  6. Step 6: Final answer
    x = 118,547,655.90

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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.