Home / 28,188,066.60-42,282,099.90-9,020,761.20

Finding the Fourth Proportional to 28,188,066.60, 42,282,099.90 and 9,020,761.20

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Solution

The fourth proportional to 28,188,066.60, 42,282,099.90 and 9,020,761.20 is: 13,531,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,066.60 : 42,282,099.90 = 9,020,761.20 : x
  2. Step 2: Convert to fraction form
    28,188,066.60/42,282,099.90 = 9,020,761.20/x
  3. Step 3: Cross multiply
    28,188,066.60x = 42,282,099.90 × 9,020,761.20
  4. Step 4: Simplify right side
    28,188,066.60x = 381,416,726,232,443.81
  5. Step 5: Solve for x
    x = 381,416,726,232,443.81/28,188,066.60
  6. Step 6: Final answer
    x = 13,531,141.80

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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.