Home / 440,287,923.78-660,432,008.79-129,395,522.86

Finding the Fourth Proportional to 440,287,923.78, 660,432,008.79 and 129,395,522.86

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Solution

The fourth proportional to 440,287,923.78, 660,432,008.79 and 129,395,522.86 is: 194,093,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,287,923.78 : 660,432,008.79 = 129,395,522.86 : x
  2. Step 2: Convert to fraction form
    440,287,923.78/660,432,008.79 = 129,395,522.86/x
  3. Step 3: Cross multiply
    440,287,923.78x = 660,432,008.79 × 129,395,522.86
  4. Step 4: Simplify right side
    440,287,923.78x = 85,456,945,089,211,088
  5. Step 5: Solve for x
    x = 85,456,945,089,211,088/440,287,923.78
  6. Step 6: Final answer
    x = 194,093,320.47

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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.