Home / 20,603,261.80-30,904,892.70-12,532,065.40

Finding the Fourth Proportional to 20,603,261.80, 30,904,892.70 and 12,532,065.40

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Solution

The fourth proportional to 20,603,261.80, 30,904,892.70 and 12,532,065.40 is: 18,798,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603,261.80 : 30,904,892.70 = 12,532,065.40 : x
  2. Step 2: Convert to fraction form
    20,603,261.80/30,904,892.70 = 12,532,065.40/x
  3. Step 3: Cross multiply
    20,603,261.80x = 30,904,892.70 × 12,532,065.40
  4. Step 4: Simplify right side
    20,603,261.80x = 387,302,136,496,382.56
  5. Step 5: Solve for x
    x = 387,302,136,496,382.56/20,603,261.80
  6. Step 6: Final answer
    x = 18,798,098.10

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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.