Home / 431,041,885.20-646,562,827.80-124,344,003.60

Finding the Fourth Proportional to 431,041,885.20, 646,562,827.80 and 124,344,003.60

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Solution

The fourth proportional to 431,041,885.20, 646,562,827.80 and 124,344,003.60 is: 186,516,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,041,885.20 : 646,562,827.80 = 124,344,003.60 : x
  2. Step 2: Convert to fraction form
    431,041,885.20/646,562,827.80 = 124,344,003.60/x
  3. Step 3: Cross multiply
    431,041,885.20x = 646,562,827.80 × 124,344,003.60
  4. Step 4: Simplify right side
    431,041,885.20x = 80,396,210,587,589,376
  5. Step 5: Solve for x
    x = 80,396,210,587,589,376/431,041,885.20
  6. Step 6: Final answer
    x = 186,516,005.40

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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.