Home / 10,871,490.80-16,287,553.20-8,611,882.40

Finding the Fourth Proportional to 10,871,490.80, 16,287,553.20 and 8,611,882.40

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Solution

The fourth proportional to 10,871,490.80, 16,287,553.20 and 8,611,882.40 is: 12,902,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871,490.80 : 16,287,553.20 = 8,611,882.40 : x
  2. Step 2: Convert to fraction form
    10,871,490.80/16,287,553.20 = 8,611,882.40/x
  3. Step 3: Cross multiply
    10,871,490.80x = 16,287,553.20 × 8,611,882.40
  4. Step 4: Simplify right side
    10,871,490.80x = 140,266,492,742,143.67
  5. Step 5: Solve for x
    x = 140,266,492,742,143.67/10,871,490.80
  6. Step 6: Final answer
    x = 12,902,231.66

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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.