Home / 12,574,426.86-18,868,959.90-5,287,359.24

Finding the Fourth Proportional to 12,574,426.86, 18,868,959.90 and 5,287,359.24

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Solution

The fourth proportional to 12,574,426.86, 18,868,959.90 and 5,287,359.24 is: 7,934,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574,426.86 : 18,868,959.90 = 5,287,359.24 : x
  2. Step 2: Convert to fraction form
    12,574,426.86/18,868,959.90 = 5,287,359.24/x
  3. Step 3: Cross multiply
    12,574,426.86x = 18,868,959.90 × 5,287,359.24
  4. Step 4: Simplify right side
    12,574,426.86x = 99,766,969,476,454.47
  5. Step 5: Solve for x
    x = 99,766,969,476,454.47/12,574,426.86
  6. Step 6: Final answer
    x = 7,934,116.65

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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.