Home / 86,019,557.70-129,029,336.55-43,021,388.10

Finding the Fourth Proportional to 86,019,557.70, 129,029,336.55 and 43,021,388.10

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Solution

The fourth proportional to 86,019,557.70, 129,029,336.55 and 43,021,388.10 is: 64,532,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,019,557.70 : 129,029,336.55 = 43,021,388.10 : x
  2. Step 2: Convert to fraction form
    86,019,557.70/129,029,336.55 = 43,021,388.10/x
  3. Step 3: Cross multiply
    86,019,557.70x = 129,029,336.55 × 43,021,388.10
  4. Step 4: Simplify right side
    86,019,557.70x = 5,551,021,164,003,065
  5. Step 5: Solve for x
    x = 5,551,021,164,003,065/86,019,557.70
  6. Step 6: Final answer
    x = 64,532,082.15

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Similar ratio
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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.