Home / 89,849,781.90-134,774,672.85-86,322,588.30

Finding the Fourth Proportional to 89,849,781.90, 134,774,672.85 and 86,322,588.30

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Solution

The fourth proportional to 89,849,781.90, 134,774,672.85 and 86,322,588.30 is: 129,483,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849,781.90 : 134,774,672.85 = 86,322,588.30 : x
  2. Step 2: Convert to fraction form
    89,849,781.90/134,774,672.85 = 86,322,588.30/x
  3. Step 3: Cross multiply
    89,849,781.90x = 134,774,672.85 × 86,322,588.30
  4. Step 4: Simplify right side
    89,849,781.90x = 11,634,098,597,697,736
  5. Step 5: Solve for x
    x = 11,634,098,597,697,736/89,849,781.90
  6. Step 6: Final answer
    x = 129,483,882.45

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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.