Home / 260,735,779.10-391,103,668.65-99,156,719.90

Finding the Fourth Proportional to 260,735,779.10, 391,103,668.65 and 99,156,719.90

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Solution

The fourth proportional to 260,735,779.10, 391,103,668.65 and 99,156,719.90 is: 148,735,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,735,779.10 : 391,103,668.65 = 99,156,719.90 : x
  2. Step 2: Convert to fraction form
    260,735,779.10/391,103,668.65 = 99,156,719.90/x
  3. Step 3: Cross multiply
    260,735,779.10x = 391,103,668.65 × 99,156,719.90
  4. Step 4: Simplify right side
    260,735,779.10x = 38,780,556,924,190,464
  5. Step 5: Solve for x
    x = 38,780,556,924,190,464/260,735,779.10
  6. Step 6: Final answer
    x = 148,735,079.85

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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.