Home / 7,380,721.90-11,069,820.98-1,988,111.15

Finding the Fourth Proportional to 7,380,721.90, 11,069,820.98 and 1,988,111.15

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Solution

The fourth proportional to 7,380,721.90, 11,069,820.98 and 1,988,111.15 is: 2,981,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380,721.90 : 11,069,820.98 = 1,988,111.15 : x
  2. Step 2: Convert to fraction form
    7,380,721.90/11,069,820.98 = 1,988,111.15/x
  3. Step 3: Cross multiply
    7,380,721.90x = 11,069,820.98 × 1,988,111.15
  4. Step 4: Simplify right side
    7,380,721.90x = 22,008,034,453,552.27
  5. Step 5: Solve for x
    x = 22,008,034,453,552.27/7,380,721.90
  6. Step 6: Final answer
    x = 2,981,826.81

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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.