Home / 10,328,575.30-15,490,095.03-3,138,178.57

Finding the Fourth Proportional to 10,328,575.30, 15,490,095.03 and 3,138,178.57

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Solution

The fourth proportional to 10,328,575.30, 15,490,095.03 and 3,138,178.57 is: 4,706,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328,575.30 : 15,490,095.03 = 3,138,178.57 : x
  2. Step 2: Convert to fraction form
    10,328,575.30/15,490,095.03 = 3,138,178.57/x
  3. Step 3: Cross multiply
    10,328,575.30x = 15,490,095.03 × 3,138,178.57
  4. Step 4: Simplify right side
    10,328,575.30x = 48,610,684,270,409.50
  5. Step 5: Solve for x
    x = 48,610,684,270,409.50/10,328,575.30
  6. Step 6: Final answer
    x = 4,706,426.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.