Home / 8,018,721.20-11,055,129.90-6,370,337.72

Finding the Fourth Proportional to 8,018,721.20, 11,055,129.90 and 6,370,337.72

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Solution

The fourth proportional to 8,018,721.20, 11,055,129.90 and 6,370,337.72 is: 8,782,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018,721.20 : 11,055,129.90 = 6,370,337.72 : x
  2. Step 2: Convert to fraction form
    8,018,721.20/11,055,129.90 = 6,370,337.72/x
  3. Step 3: Cross multiply
    8,018,721.20x = 11,055,129.90 × 6,370,337.72
  4. Step 4: Simplify right side
    8,018,721.20x = 70,424,911,001,469.83
  5. Step 5: Solve for x
    x = 70,424,911,001,469.83/8,018,721.20
  6. Step 6: Final answer
    x = 8,782,561.36

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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.