Home / 71,868,015.40-107,802,023.10-54,861,903.40

Finding the Fourth Proportional to 71,868,015.40, 107,802,023.10 and 54,861,903.40

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Solution

The fourth proportional to 71,868,015.40, 107,802,023.10 and 54,861,903.40 is: 82,292,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,868,015.40 : 107,802,023.10 = 54,861,903.40 : x
  2. Step 2: Convert to fraction form
    71,868,015.40/107,802,023.10 = 54,861,903.40/x
  3. Step 3: Cross multiply
    71,868,015.40x = 107,802,023.10 × 54,861,903.40
  4. Step 4: Simplify right side
    71,868,015.40x = 5,914,224,177,636,768
  5. Step 5: Solve for x
    x = 5,914,224,177,636,768/71,868,015.40
  6. Step 6: Final answer
    x = 82,292,855.10

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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.