Home / 5,378,740.80-8,068,111.20-3,943,850.10

Finding the Fourth Proportional to 5,378,740.80, 8,068,111.20 and 3,943,850.10

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Solution

The fourth proportional to 5,378,740.80, 8,068,111.20 and 3,943,850.10 is: 5,915,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,740.80 : 8,068,111.20 = 3,943,850.10 : x
  2. Step 2: Convert to fraction form
    5,378,740.80/8,068,111.20 = 3,943,850.10/x
  3. Step 3: Cross multiply
    5,378,740.80x = 8,068,111.20 × 3,943,850.10
  4. Step 4: Simplify right side
    5,378,740.80x = 31,819,421,162,931.12
  5. Step 5: Solve for x
    x = 31,819,421,162,931.12/5,378,740.80
  6. Step 6: Final answer
    x = 5,915,775.15

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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.