Home / 20,632,648.20-30,948,972.30-18,869,051.40

Finding the Fourth Proportional to 20,632,648.20, 30,948,972.30 and 18,869,051.40

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Solution

The fourth proportional to 20,632,648.20, 30,948,972.30 and 18,869,051.40 is: 28,303,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632,648.20 : 30,948,972.30 = 18,869,051.40 : x
  2. Step 2: Convert to fraction form
    20,632,648.20/30,948,972.30 = 18,869,051.40/x
  3. Step 3: Cross multiply
    20,632,648.20x = 30,948,972.30 × 18,869,051.40
  4. Step 4: Simplify right side
    20,632,648.20x = 583,977,749,105,876.25
  5. Step 5: Solve for x
    x = 583,977,749,105,876.25/20,632,648.20
  6. Step 6: Final answer
    x = 28,303,577.10

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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.