Home / 193,129,228.80-289,504,886.40-77,960,059.20

Finding the Fourth Proportional to 193,129,228.80, 289,504,886.40 and 77,960,059.20

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Solution

The fourth proportional to 193,129,228.80, 289,504,886.40 and 77,960,059.20 is: 116,863,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,129,228.80 : 289,504,886.40 = 77,960,059.20 : x
  2. Step 2: Convert to fraction form
    193,129,228.80/289,504,886.40 = 77,960,059.20/x
  3. Step 3: Cross multiply
    193,129,228.80x = 289,504,886.40 × 77,960,059.20
  4. Step 4: Simplify right side
    193,129,228.80x = 22,569,818,082,433,272
  5. Step 5: Solve for x
    x = 22,569,818,082,433,272/193,129,228.80
  6. Step 6: Final answer
    x = 116,863,813.02

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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.