Home / 20,178,038.20-30,267,057.30-19,989,081.40

Finding the Fourth Proportional to 20,178,038.20, 30,267,057.30 and 19,989,081.40

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Solution

The fourth proportional to 20,178,038.20, 30,267,057.30 and 19,989,081.40 is: 29,983,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,038.20 : 30,267,057.30 = 19,989,081.40 : x
  2. Step 2: Convert to fraction form
    20,178,038.20/30,267,057.30 = 19,989,081.40/x
  3. Step 3: Cross multiply
    20,178,038.20x = 30,267,057.30 × 19,989,081.40
  4. Step 4: Simplify right side
    20,178,038.20x = 605,010,672,108,164.25
  5. Step 5: Solve for x
    x = 605,010,672,108,164.25/20,178,038.20
  6. Step 6: Final answer
    x = 29,983,622.10

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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.