Home / 15,017,729.96-20,724,875.40-8,492,335.76

Finding the Fourth Proportional to 15,017,729.96, 20,724,875.40 and 8,492,335.76

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Solution

The fourth proportional to 15,017,729.96, 20,724,875.40 and 8,492,335.76 is: 11,719,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017,729.96 : 20,724,875.40 = 8,492,335.76 : x
  2. Step 2: Convert to fraction form
    15,017,729.96/20,724,875.40 = 8,492,335.76/x
  3. Step 3: Cross multiply
    15,017,729.96x = 20,724,875.40 × 8,492,335.76
  4. Step 4: Simplify right side
    15,017,729.96x = 176,002,600,480,964.28
  5. Step 5: Solve for x
    x = 176,002,600,480,964.28/15,017,729.96
  6. Step 6: Final answer
    x = 11,719,654.10

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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.