Home / 498,338,901.76-687,686,870.88-286,629,635.92

Finding the Fourth Proportional to 498,338,901.76, 687,686,870.88 and 286,629,635.92

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Solution

The fourth proportional to 498,338,901.76, 687,686,870.88 and 286,629,635.92 is: 395,536,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,338,901.76 : 687,686,870.88 = 286,629,635.92 : x
  2. Step 2: Convert to fraction form
    498,338,901.76/687,686,870.88 = 286,629,635.92/x
  3. Step 3: Cross multiply
    498,338,901.76x = 687,686,870.88 × 286,629,635.92
  4. Step 4: Simplify right side
    498,338,901.76x = 197,111,437,427,298,464
  5. Step 5: Solve for x
    x = 197,111,437,427,298,464/498,338,901.76
  6. Step 6: Final answer
    x = 395,536,926.24

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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.