Home / 20,178,034.20-30,267,051.30-19,989,077.40

Finding the Fourth Proportional to 20,178,034.20, 30,267,051.30 and 19,989,077.40

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Solution

The fourth proportional to 20,178,034.20, 30,267,051.30 and 19,989,077.40 is: 29,983,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,034.20 : 30,267,051.30 = 19,989,077.40 : x
  2. Step 2: Convert to fraction form
    20,178,034.20/30,267,051.30 = 19,989,077.40/x
  3. Step 3: Cross multiply
    20,178,034.20x = 30,267,051.30 × 19,989,077.40
  4. Step 4: Simplify right side
    20,178,034.20x = 605,010,431,105,470.62
  5. Step 5: Solve for x
    x = 605,010,431,105,470.62/20,178,034.20
  6. Step 6: Final answer
    x = 29,983,616.10

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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.