Home / 13,103,641.46-18,084,377.58-7,878,359

Finding the Fourth Proportional to 13,103,641.46, 18,084,377.58 and 7,878,359

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Solution

The fourth proportional to 13,103,641.46, 18,084,377.58 and 7,878,359 is: 10,872,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,641.46 : 18,084,377.58 = 7,878,359 : x
  2. Step 2: Convert to fraction form
    13,103,641.46/18,084,377.58 = 7,878,359/x
  3. Step 3: Cross multiply
    13,103,641.46x = 18,084,377.58 × 7,878,359
  4. Step 4: Simplify right side
    13,103,641.46x = 142,475,218,866,791.22
  5. Step 5: Solve for x
    x = 142,475,218,866,791.22/13,103,641.46
  6. Step 6: Final answer
    x = 10,872,948.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.