Home / 161,987,017.20-223,541,939.31-91,437,477.23

Finding the Fourth Proportional to 161,987,017.20, 223,541,939.31 and 91,437,477.23

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Solution

The fourth proportional to 161,987,017.20, 223,541,939.31 and 91,437,477.23 is: 126,183,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987,017.20 : 223,541,939.31 = 91,437,477.23 : x
  2. Step 2: Convert to fraction form
    161,987,017.20/223,541,939.31 = 91,437,477.23/x
  3. Step 3: Cross multiply
    161,987,017.20x = 223,541,939.31 × 91,437,477.23
  4. Step 4: Simplify right side
    161,987,017.20x = 20,440,110,985,608,168
  5. Step 5: Solve for x
    x = 20,440,110,985,608,168/161,987,017.20
  6. Step 6: Final answer
    x = 126,183,637.05

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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.