Home / 21,521,879.20-32,282,818.80-7,874,999.20

Finding the Fourth Proportional to 21,521,879.20, 32,282,818.80 and 7,874,999.20

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Solution

The fourth proportional to 21,521,879.20, 32,282,818.80 and 7,874,999.20 is: 11,812,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521,879.20 : 32,282,818.80 = 7,874,999.20 : x
  2. Step 2: Convert to fraction form
    21,521,879.20/32,282,818.80 = 7,874,999.20/x
  3. Step 3: Cross multiply
    21,521,879.20x = 32,282,818.80 × 7,874,999.20
  4. Step 4: Simplify right side
    21,521,879.20x = 254,227,172,223,744.97
  5. Step 5: Solve for x
    x = 254,227,172,223,744.97/21,521,879.20
  6. Step 6: Final answer
    x = 11,812,498.80

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1.5x scale

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.