Home / 15,051,921.17-20,772,222.18-8,436,631.90

Finding the Fourth Proportional to 15,051,921.17, 20,772,222.18 and 8,436,631.90

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Solution

The fourth proportional to 15,051,921.17, 20,772,222.18 and 8,436,631.90 is: 11,642,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051,921.17 : 20,772,222.18 = 8,436,631.90 : x
  2. Step 2: Convert to fraction form
    15,051,921.17/20,772,222.18 = 8,436,631.90/x
  3. Step 3: Cross multiply
    15,051,921.17x = 20,772,222.18 × 8,436,631.90
  4. Step 4: Simplify right side
    15,051,921.17x = 175,247,592,277,675.56
  5. Step 5: Solve for x
    x = 175,247,592,277,675.56/15,051,921.17
  6. Step 6: Final answer
    x = 11,642,872.05

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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.