Home / 13,338,042.74-18,400,862.72-8,929,188.84

Finding the Fourth Proportional to 13,338,042.74, 18,400,862.72 and 8,929,188.84

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Solution

The fourth proportional to 13,338,042.74, 18,400,862.72 and 8,929,188.84 is: 12,318,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338,042.74 : 18,400,862.72 = 8,929,188.84 : x
  2. Step 2: Convert to fraction form
    13,338,042.74/18,400,862.72 = 8,929,188.84/x
  3. Step 3: Cross multiply
    13,338,042.74x = 18,400,862.72 × 8,929,188.84
  4. Step 4: Simplify right side
    13,338,042.74x = 164,304,778,060,252.03
  5. Step 5: Solve for x
    x = 164,304,778,060,252.03/13,338,042.74
  6. Step 6: Final answer
    x = 12,318,507.39

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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.