Home / 655,353,538.20-983,023,574.40-378,828,801.18

Finding the Fourth Proportional to 655,353,538.20, 983,023,574.40 and 378,828,801.18

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Solution

The fourth proportional to 655,353,538.20, 983,023,574.40 and 378,828,801.18 is: 568,239,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,353,538.20 : 983,023,574.40 = 378,828,801.18 : x
  2. Step 2: Convert to fraction form
    655,353,538.20/983,023,574.40 = 378,828,801.18/x
  3. Step 3: Cross multiply
    655,353,538.20x = 983,023,574.40 × 378,828,801.18
  4. Step 4: Simplify right side
    655,353,538.20x = 372,397,642,221,630,528
  5. Step 5: Solve for x
    x = 372,397,642,221,630,528/655,353,538.20
  6. Step 6: Final answer
    x = 568,239,309.80

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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.