Home / 260,735,779.60-391,103,669.40-99,156,720.40

Finding the Fourth Proportional to 260,735,779.60, 391,103,669.40 and 99,156,720.40

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Solution

The fourth proportional to 260,735,779.60, 391,103,669.40 and 99,156,720.40 is: 148,735,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,735,779.60 : 391,103,669.40 = 99,156,720.40 : x
  2. Step 2: Convert to fraction form
    260,735,779.60/391,103,669.40 = 99,156,720.40/x
  3. Step 3: Cross multiply
    260,735,779.60x = 391,103,669.40 × 99,156,720.40
  4. Step 4: Simplify right side
    260,735,779.60x = 38,780,557,194,109,832
  5. Step 5: Solve for x
    x = 38,780,557,194,109,832/260,735,779.60
  6. Step 6: Final answer
    x = 148,735,080.60

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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.