Home / 89,849,481.40-134,774,222.10-86,322,287.80

Finding the Fourth Proportional to 89,849,481.40, 134,774,222.10 and 86,322,287.80

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Solution

The fourth proportional to 89,849,481.40, 134,774,222.10 and 86,322,287.80 is: 129,483,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849,481.40 : 134,774,222.10 = 86,322,287.80 : x
  2. Step 2: Convert to fraction form
    89,849,481.40/134,774,222.10 = 86,322,287.80/x
  3. Step 3: Cross multiply
    89,849,481.40x = 134,774,222.10 × 86,322,287.80
  4. Step 4: Simplify right side
    89,849,481.40x = 11,634,019,188,137,320
  5. Step 5: Solve for x
    x = 11,634,019,188,137,320/89,849,481.40
  6. Step 6: Final answer
    x = 129,483,431.70

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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.