Home / 12,480,920.70-18,721,381.05-11,063,744.70

Finding the Fourth Proportional to 12,480,920.70, 18,721,381.05 and 11,063,744.70

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Solution

The fourth proportional to 12,480,920.70, 18,721,381.05 and 11,063,744.70 is: 16,595,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,920.70 : 18,721,381.05 = 11,063,744.70 : x
  2. Step 2: Convert to fraction form
    12,480,920.70/18,721,381.05 = 11,063,744.70/x
  3. Step 3: Cross multiply
    12,480,920.70x = 18,721,381.05 × 11,063,744.70
  4. Step 4: Simplify right side
    12,480,920.70x = 207,128,580,368,617.94
  5. Step 5: Solve for x
    x = 207,128,580,368,617.94/12,480,920.70
  6. Step 6: Final answer
    x = 16,595,617.05

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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.