Home / 161,861,505.08-223,368,718.65-87,521,888.03

Finding the Fourth Proportional to 161,861,505.08, 223,368,718.65 and 87,521,888.03

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Solution

The fourth proportional to 161,861,505.08, 223,368,718.65 and 87,521,888.03 is: 120,780,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,505.08 : 223,368,718.65 = 87,521,888.03 : x
  2. Step 2: Convert to fraction form
    161,861,505.08/223,368,718.65 = 87,521,888.03/x
  3. Step 3: Cross multiply
    161,861,505.08x = 223,368,718.65 × 87,521,888.03
  4. Step 4: Simplify right side
    161,861,505.08x = 19,549,651,983,089,872
  5. Step 5: Solve for x
    x = 19,549,651,983,089,872/161,861,505.08
  6. Step 6: Final answer
    x = 120,780,119.85

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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.