Home / 431,161,891.20-646,826,817.60-124,464,009.60

Finding the Fourth Proportional to 431,161,891.20, 646,826,817.60 and 124,464,009.60

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Solution

The fourth proportional to 431,161,891.20, 646,826,817.60 and 124,464,009.60 is: 186,720,257.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,161,891.20 : 646,826,817.60 = 124,464,009.60 : x
  2. Step 2: Convert to fraction form
    431,161,891.20/646,826,817.60 = 124,464,009.60/x
  3. Step 3: Cross multiply
    431,161,891.20x = 646,826,817.60 × 124,464,009.60
  4. Step 4: Simplify right side
    431,161,891.20x = 80,506,659,235,303,856
  5. Step 5: Solve for x
    x = 80,506,659,235,303,856/431,161,891.20
  6. Step 6: Final answer
    x = 186,720,257.24

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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.