Home / 12,574,434.28-18,868,970.60-5,287,367.28

Finding the Fourth Proportional to 12,574,434.28, 18,868,970.60 and 5,287,367.28

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Solution

The fourth proportional to 12,574,434.28, 18,868,970.60 and 5,287,367.28 is: 7,934,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574,434.28 : 18,868,970.60 = 5,287,367.28 : x
  2. Step 2: Convert to fraction form
    12,574,434.28/18,868,970.60 = 5,287,367.28/x
  3. Step 3: Cross multiply
    12,574,434.28x = 18,868,970.60 × 5,287,367.28
  4. Step 4: Simplify right side
    12,574,434.28x = 99,767,177,757,721.98
  5. Step 5: Solve for x
    x = 99,767,177,757,721.98/12,574,434.28
  6. Step 6: Final answer
    x = 7,934,128.53

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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.