Home / 161,862,772.72-223,357,123.20-91,294,494.16

Finding the Fourth Proportional to 161,862,772.72, 223,357,123.20 and 91,294,494.16

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Solution

The fourth proportional to 161,862,772.72, 223,357,123.20 and 91,294,494.16 is: 125,978,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,862,772.72 : 223,357,123.20 = 91,294,494.16 : x
  2. Step 2: Convert to fraction form
    161,862,772.72/223,357,123.20 = 91,294,494.16/x
  3. Step 3: Cross multiply
    161,862,772.72x = 223,357,123.20 × 91,294,494.16
  4. Step 4: Simplify right side
    161,862,772.72x = 20,391,275,579,576,800
  5. Step 5: Solve for x
    x = 20,391,275,579,576,800/161,862,772.72
  6. Step 6: Final answer
    x = 125,978,785.84

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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.