Home / 28,979,818.60-43,442,079.90-10,779,140.20

Finding the Fourth Proportional to 28,979,818.60, 43,442,079.90 and 10,779,140.20

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Solution

The fourth proportional to 28,979,818.60, 43,442,079.90 and 10,779,140.20 is: 16,158,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,818.60 : 43,442,079.90 = 10,779,140.20 : x
  2. Step 2: Convert to fraction form
    28,979,818.60/43,442,079.90 = 10,779,140.20/x
  3. Step 3: Cross multiply
    28,979,818.60x = 43,442,079.90 × 10,779,140.20
  4. Step 4: Simplify right side
    28,979,818.60x = 468,268,269,821,701.94
  5. Step 5: Solve for x
    x = 468,268,269,821,701.94/28,979,818.60
  6. Step 6: Final answer
    x = 16,158,426.53

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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.