Home / 89,848,986.40-134,773,479.60-86,321,792.80

Finding the Fourth Proportional to 89,848,986.40, 134,773,479.60 and 86,321,792.80

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Solution

The fourth proportional to 89,848,986.40, 134,773,479.60 and 86,321,792.80 is: 129,482,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,848,986.40 : 134,773,479.60 = 86,321,792.80 : x
  2. Step 2: Convert to fraction form
    89,848,986.40/134,773,479.60 = 86,321,792.80/x
  3. Step 3: Cross multiply
    89,848,986.40x = 134,773,479.60 × 86,321,792.80
  4. Step 4: Simplify right side
    89,848,986.40x = 11,633,888,380,966,226
  5. Step 5: Solve for x
    x = 11,633,888,380,966,226/89,848,986.40
  6. Step 6: Final answer
    x = 129,482,689.20

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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.