Home / 655,353,544.20-983,023,583.40-378,828,807.20

Finding the Fourth Proportional to 655,353,544.20, 983,023,583.40 and 378,828,807.20

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Solution

The fourth proportional to 655,353,544.20, 983,023,583.40 and 378,828,807.20 is: 568,239,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,353,544.20 : 983,023,583.40 = 378,828,807.20 : x
  2. Step 2: Convert to fraction form
    655,353,544.20/983,023,583.40 = 378,828,807.20/x
  3. Step 3: Cross multiply
    655,353,544.20x = 983,023,583.40 × 378,828,807.20
  4. Step 4: Simplify right side
    655,353,544.20x = 372,397,651,548,891,712
  5. Step 5: Solve for x
    x = 372,397,651,548,891,712/655,353,544.20
  6. Step 6: Final answer
    x = 568,239,318.83

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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.