Home / 84,250,812.40-126,376,218.60-74,509,039.60

Finding the Fourth Proportional to 84,250,812.40, 126,376,218.60 and 74,509,039.60

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Solution

The fourth proportional to 84,250,812.40, 126,376,218.60 and 74,509,039.60 is: 111,763,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,250,812.40 : 126,376,218.60 = 74,509,039.60 : x
  2. Step 2: Convert to fraction form
    84,250,812.40/126,376,218.60 = 74,509,039.60/x
  3. Step 3: Cross multiply
    84,250,812.40x = 126,376,218.60 × 74,509,039.60
  4. Step 4: Simplify right side
    84,250,812.40x = 9,416,170,676,165,656
  5. Step 5: Solve for x
    x = 9,416,170,676,165,656/84,250,812.40
  6. Step 6: Final answer
    x = 111,763,559.40

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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.