Home / 684,359,435.52-1,026,129,205.80-217,819,338.84

Finding the Fourth Proportional to 684,359,435.52, 1,026,129,205.80 and 217,819,338.84

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Solution

The fourth proportional to 684,359,435.52, 1,026,129,205.80 and 217,819,338.84 is: 326,598,529.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,359,435.52 : 1,026,129,205.80 = 217,819,338.84 : x
  2. Step 2: Convert to fraction form
    684,359,435.52/1,026,129,205.80 = 217,819,338.84/x
  3. Step 3: Cross multiply
    684,359,435.52x = 1,026,129,205.80 × 217,819,338.84
  4. Step 4: Simplify right side
    684,359,435.52x = 223,510,785,171,770,272
  5. Step 5: Solve for x
    x = 223,510,785,171,770,272/684,359,435.52
  6. Step 6: Final answer
    x = 326,598,529.33

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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.