Home / 20,385,385.03-30,578,069.01-7,432,505.74

Finding the Fourth Proportional to 20,385,385.03, 30,578,069.01 and 7,432,505.74

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Solution

The fourth proportional to 20,385,385.03, 30,578,069.01 and 7,432,505.74 is: 11,148,755.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,385.03 : 30,578,069.01 = 7,432,505.74 : x
  2. Step 2: Convert to fraction form
    20,385,385.03/30,578,069.01 = 7,432,505.74/x
  3. Step 3: Cross multiply
    20,385,385.03x = 30,578,069.01 × 7,432,505.74
  4. Step 4: Simplify right side
    20,385,385.03x = 227,271,673,282,050.78
  5. Step 5: Solve for x
    x = 227,271,673,282,050.78/20,385,385.03
  6. Step 6: Final answer
    x = 11,148,755.49

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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.