Home / 28,041,703.20-42,074,364.60-15,271,372.80

Finding the Fourth Proportional to 28,041,703.20, 42,074,364.60 and 15,271,372.80

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Solution

The fourth proportional to 28,041,703.20, 42,074,364.60 and 15,271,372.80 is: 22,913,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041,703.20 : 42,074,364.60 = 15,271,372.80 : x
  2. Step 2: Convert to fraction form
    28,041,703.20/42,074,364.60 = 15,271,372.80/x
  3. Step 3: Cross multiply
    28,041,703.20x = 42,074,364.60 × 15,271,372.80
  4. Step 4: Simplify right side
    28,041,703.20x = 642,533,307,129,722.88
  5. Step 5: Solve for x
    x = 642,533,307,129,722.88/28,041,703.20
  6. Step 6: Final answer
    x = 22,913,490.76

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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.