Home / 161,861,568.40-223,368,806.42-87,521,951.34

Finding the Fourth Proportional to 161,861,568.40, 223,368,806.42 and 87,521,951.34

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Solution

The fourth proportional to 161,861,568.40, 223,368,806.42 and 87,521,951.34 is: 120,780,207.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,568.40 : 223,368,806.42 = 87,521,951.34 : x
  2. Step 2: Convert to fraction form
    161,861,568.40/223,368,806.42 = 87,521,951.34/x
  3. Step 3: Cross multiply
    161,861,568.40x = 223,368,806.42 × 87,521,951.34
  4. Step 4: Simplify right side
    161,861,568.40x = 19,549,673,806,365,120
  5. Step 5: Solve for x
    x = 19,549,673,806,365,120/161,861,568.40
  6. Step 6: Final answer
    x = 120,780,207.43

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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.