Home / 86,813,285.76-119,801,861.46-47,655,728.88

Finding the Fourth Proportional to 86,813,285.76, 119,801,861.46 and 47,655,728.88

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Solution

The fourth proportional to 86,813,285.76, 119,801,861.46 and 47,655,728.88 is: 65,764,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,813,285.76 : 119,801,861.46 = 47,655,728.88 : x
  2. Step 2: Convert to fraction form
    86,813,285.76/119,801,861.46 = 47,655,728.88/x
  3. Step 3: Cross multiply
    86,813,285.76x = 119,801,861.46 × 47,655,728.88
  4. Step 4: Simplify right side
    86,813,285.76x = 5,709,245,029,057,081
  5. Step 5: Solve for x
    x = 5,709,245,029,057,081/86,813,285.76
  6. Step 6: Final answer
    x = 65,764,646.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.