Home / 134,857,772.40-186,103,725.84-72,978,110.88

Finding the Fourth Proportional to 134,857,772.40, 186,103,725.84 and 72,978,110.88

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Solution

The fourth proportional to 134,857,772.40, 186,103,725.84 and 72,978,110.88 is: 100,709,792.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,772.40 : 186,103,725.84 = 72,978,110.88 : x
  2. Step 2: Convert to fraction form
    134,857,772.40/186,103,725.84 = 72,978,110.88/x
  3. Step 3: Cross multiply
    134,857,772.40x = 186,103,725.84 × 72,978,110.88
  4. Step 4: Simplify right side
    134,857,772.40x = 13,581,498,339,532,640
  5. Step 5: Solve for x
    x = 13,581,498,339,532,640/134,857,772.40
  6. Step 6: Final answer
    x = 100,709,792.98

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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.