Home / 28,746,543.10-43,140,809.85-20,243,487.10

Finding the Fourth Proportional to 28,746,543.10, 43,140,809.85 and 20,243,487.10

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Solution

The fourth proportional to 28,746,543.10, 43,140,809.85 and 20,243,487.10 is: 30,380,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746,543.10 : 43,140,809.85 = 20,243,487.10 : x
  2. Step 2: Convert to fraction form
    28,746,543.10/43,140,809.85 = 20,243,487.10/x
  3. Step 3: Cross multiply
    28,746,543.10x = 43,140,809.85 × 20,243,487.10
  4. Step 4: Simplify right side
    28,746,543.10x = 873,320,427,682,028
  5. Step 5: Solve for x
    x = 873,320,427,682,028/28,746,543.10
  6. Step 6: Final answer
    x = 30,380,015.60

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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.