Home / 89,454,024.30-134,181,036.45-78,683,486.70

Finding the Fourth Proportional to 89,454,024.30, 134,181,036.45 and 78,683,486.70

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Solution

The fourth proportional to 89,454,024.30, 134,181,036.45 and 78,683,486.70 is: 118,025,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,454,024.30 : 134,181,036.45 = 78,683,486.70 : x
  2. Step 2: Convert to fraction form
    89,454,024.30/134,181,036.45 = 78,683,486.70/x
  3. Step 3: Cross multiply
    89,454,024.30x = 134,181,036.45 × 78,683,486.70
  4. Step 4: Simplify right side
    89,454,024.30x = 10,557,831,796,905,790
  5. Step 5: Solve for x
    x = 10,557,831,796,905,790/89,454,024.30
  6. Step 6: Final answer
    x = 118,025,230.05

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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.