Home / 28,188,444.64-42,288,965.52-9,020,351.92

Finding the Fourth Proportional to 28,188,444.64, 42,288,965.52 and 9,020,351.92

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Solution

The fourth proportional to 28,188,444.64, 42,288,965.52 and 9,020,351.92 is: 13,532,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,444.64 : 42,288,965.52 = 9,020,351.92 : x
  2. Step 2: Convert to fraction form
    28,188,444.64/42,288,965.52 = 9,020,351.92/x
  3. Step 3: Cross multiply
    28,188,444.64x = 42,288,965.52 × 9,020,351.92
  4. Step 4: Simplify right side
    28,188,444.64x = 381,461,351,323,145.81
  5. Step 5: Solve for x
    x = 381,461,351,323,145.81/28,188,444.64
  6. Step 6: Final answer
    x = 13,532,543.43

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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.