Home / 21,420,959.47-29,561,771.67-12,001,831.71

Finding the Fourth Proportional to 21,420,959.47, 29,561,771.67 and 12,001,831.71

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Solution

The fourth proportional to 21,420,959.47, 29,561,771.67 and 12,001,831.71 is: 16,563,002.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,959.47 : 29,561,771.67 = 12,001,831.71 : x
  2. Step 2: Convert to fraction form
    21,420,959.47/29,561,771.67 = 12,001,831.71/x
  3. Step 3: Cross multiply
    21,420,959.47x = 29,561,771.67 × 12,001,831.71
  4. Step 4: Simplify right side
    21,420,959.47x = 354,795,408,424,967.62
  5. Step 5: Solve for x
    x = 354,795,408,424,967.62/21,420,959.47
  6. Step 6: Final answer
    x = 16,563,002.65

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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.