Home / 89,900,128-124,062,505.60-48,647,020.80

Finding the Fourth Proportional to 89,900,128, 124,062,505.60 and 48,647,020.80

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Solution

The fourth proportional to 89,900,128, 124,062,505.60 and 48,647,020.80 is: 67,133,066.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,900,128 : 124,062,505.60 = 48,647,020.80 : x
  2. Step 2: Convert to fraction form
    89,900,128/124,062,505.60 = 48,647,020.80/x
  3. Step 3: Cross multiply
    89,900,128x = 124,062,505.60 × 48,647,020.80
  4. Step 4: Simplify right side
    89,900,128x = 6,035,271,290,423,316
  5. Step 5: Solve for x
    x = 6,035,271,290,423,316/89,900,128
  6. Step 6: Final answer
    x = 67,133,066.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.