Home / 89,664,005.60-134,496,008.40-81,586,102.40

Finding the Fourth Proportional to 89,664,005.60, 134,496,008.40 and 81,586,102.40

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Solution

The fourth proportional to 89,664,005.60, 134,496,008.40 and 81,586,102.40 is: 122,379,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,664,005.60 : 134,496,008.40 = 81,586,102.40 : x
  2. Step 2: Convert to fraction form
    89,664,005.60/134,496,008.40 = 81,586,102.40/x
  3. Step 3: Cross multiply
    89,664,005.60x = 134,496,008.40 × 81,586,102.40
  4. Step 4: Simplify right side
    89,664,005.60x = 10,973,005,113,713,662
  5. Step 5: Solve for x
    x = 10,973,005,113,713,662/89,664,005.60
  6. Step 6: Final answer
    x = 122,379,153.60

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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.