Home / 10,519,613.10-15,779,419.65-8,628,489.90

Finding the Fourth Proportional to 10,519,613.10, 15,779,419.65 and 8,628,489.90

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Solution

The fourth proportional to 10,519,613.10, 15,779,419.65 and 8,628,489.90 is: 12,942,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519,613.10 : 15,779,419.65 = 8,628,489.90 : x
  2. Step 2: Convert to fraction form
    10,519,613.10/15,779,419.65 = 8,628,489.90/x
  3. Step 3: Cross multiply
    10,519,613.10x = 15,779,419.65 × 8,628,489.90
  4. Step 4: Simplify right side
    10,519,613.10x = 136,152,563,077,886.55
  5. Step 5: Solve for x
    x = 136,152,563,077,886.55/10,519,613.10
  6. Step 6: Final answer
    x = 12,942,734.85

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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.