Home / 260,735,806.10-391,103,709.15-99,156,746.90

Finding the Fourth Proportional to 260,735,806.10, 391,103,709.15 and 99,156,746.90

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Solution

The fourth proportional to 260,735,806.10, 391,103,709.15 and 99,156,746.90 is: 148,735,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,735,806.10 : 391,103,709.15 = 99,156,746.90 : x
  2. Step 2: Convert to fraction form
    260,735,806.10/391,103,709.15 = 99,156,746.90/x
  3. Step 3: Cross multiply
    260,735,806.10x = 391,103,709.15 × 99,156,746.90
  4. Step 4: Simplify right side
    260,735,806.10x = 38,780,571,499,837,768
  5. Step 5: Solve for x
    x = 38,780,571,499,837,768/260,735,806.10
  6. Step 6: Final answer
    x = 148,735,120.35

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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.