Home / 161,861,506.58-223,368,720.72-87,521,889.53

Finding the Fourth Proportional to 161,861,506.58, 223,368,720.72 and 87,521,889.53

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Solution

The fourth proportional to 161,861,506.58, 223,368,720.72 and 87,521,889.53 is: 120,780,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,506.58 : 223,368,720.72 = 87,521,889.53 : x
  2. Step 2: Convert to fraction form
    161,861,506.58/223,368,720.72 = 87,521,889.53/x
  3. Step 3: Cross multiply
    161,861,506.58x = 223,368,720.72 × 87,521,889.53
  4. Step 4: Simplify right side
    161,861,506.58x = 19,549,652,499,313,264
  5. Step 5: Solve for x
    x = 19,549,652,499,313,264/161,861,506.58
  6. Step 6: Final answer
    x = 120,780,121.92

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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.