Home / 15,374,344.32-21,219,838.92-12,793,509.36

Finding the Fourth Proportional to 15,374,344.32, 21,219,838.92 and 12,793,509.36

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Solution

The fourth proportional to 15,374,344.32, 21,219,838.92 and 12,793,509.36 is: 17,657,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374,344.32 : 21,219,838.92 = 12,793,509.36 : x
  2. Step 2: Convert to fraction form
    15,374,344.32/21,219,838.92 = 12,793,509.36/x
  3. Step 3: Cross multiply
    15,374,344.32x = 21,219,838.92 × 12,793,509.36
  4. Step 4: Simplify right side
    15,374,344.32x = 271,476,207,840,712.31
  5. Step 5: Solve for x
    x = 271,476,207,840,712.31/15,374,344.32
  6. Step 6: Final answer
    x = 17,657,742.16

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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.