Home / 28,025,338.60-42,038,007.90-20,850,885.10

Finding the Fourth Proportional to 28,025,338.60, 42,038,007.90 and 20,850,885.10

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Solution

The fourth proportional to 28,025,338.60, 42,038,007.90 and 20,850,885.10 is: 31,276,327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,338.60 : 42,038,007.90 = 20,850,885.10 : x
  2. Step 2: Convert to fraction form
    28,025,338.60/42,038,007.90 = 20,850,885.10/x
  3. Step 3: Cross multiply
    28,025,338.60x = 42,038,007.90 × 20,850,885.10
  4. Step 4: Simplify right side
    28,025,338.60x = 876,529,672,555,792.38
  5. Step 5: Solve for x
    x = 876,529,672,555,792.38/28,025,338.60
  6. Step 6: Final answer
    x = 31,276,327.65

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Similar ratio
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1.5x scale

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.