Home / 440,512,681.29-660,173,789.78-167,734,644.81

Finding the Fourth Proportional to 440,512,681.29, 660,173,789.78 and 167,734,644.81

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Solution

The fourth proportional to 440,512,681.29, 660,173,789.78 and 167,734,644.81 is: 251,375,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,512,681.29 : 660,173,789.78 = 167,734,644.81 : x
  2. Step 2: Convert to fraction form
    440,512,681.29/660,173,789.78 = 167,734,644.81/x
  3. Step 3: Cross multiply
    440,512,681.29x = 660,173,789.78 × 167,734,644.81
  4. Step 4: Simplify right side
    440,512,681.29x = 110,734,016,141,619,904
  5. Step 5: Solve for x
    x = 110,734,016,141,619,904/440,512,681.29
  6. Step 6: Final answer
    x = 251,375,319.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.