Home / 15,374,329.32-21,219,818.28-12,793,494.36

Finding the Fourth Proportional to 15,374,329.32, 21,219,818.28 and 12,793,494.36

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Solution

The fourth proportional to 15,374,329.32, 21,219,818.28 and 12,793,494.36 is: 17,657,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374,329.32 : 21,219,818.28 = 12,793,494.36 : x
  2. Step 2: Convert to fraction form
    15,374,329.32/21,219,818.28 = 12,793,494.36/x
  3. Step 3: Cross multiply
    15,374,329.32x = 21,219,818.28 × 12,793,494.36
  4. Step 4: Simplify right side
    15,374,329.32x = 271,475,625,485,404.91
  5. Step 5: Solve for x
    x = 271,475,625,485,404.91/15,374,329.32
  6. Step 6: Final answer
    x = 17,657,721.51

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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.