Home / 89,084,611.80-133,626,917.70-78,314,074.20

Finding the Fourth Proportional to 89,084,611.80, 133,626,917.70 and 78,314,074.20

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Solution

The fourth proportional to 89,084,611.80, 133,626,917.70 and 78,314,074.20 is: 117,471,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,084,611.80 : 133,626,917.70 = 78,314,074.20 : x
  2. Step 2: Convert to fraction form
    89,084,611.80/133,626,917.70 = 78,314,074.20/x
  3. Step 3: Cross multiply
    89,084,611.80x = 133,626,917.70 × 78,314,074.20
  4. Step 4: Simplify right side
    89,084,611.80x = 10,464,868,347,875,094
  5. Step 5: Solve for x
    x = 10,464,868,347,875,094/89,084,611.80
  6. Step 6: Final answer
    x = 117,471,111.30

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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.