Home / 491,055,646.42-677,555,632.18-282,171,432.76

Finding the Fourth Proportional to 491,055,646.42, 677,555,632.18 and 282,171,432.76

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Solution

The fourth proportional to 491,055,646.42, 677,555,632.18 and 282,171,432.76 is: 389,338,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,055,646.42 : 677,555,632.18 = 282,171,432.76 : x
  2. Step 2: Convert to fraction form
    491,055,646.42/677,555,632.18 = 282,171,432.76/x
  3. Step 3: Cross multiply
    491,055,646.42x = 677,555,632.18 × 282,171,432.76
  4. Step 4: Simplify right side
    491,055,646.42x = 191,186,843,506,838,144
  5. Step 5: Solve for x
    x = 191,186,843,506,838,144/491,055,646.42
  6. Step 6: Final answer
    x = 389,338,448.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.