Home / 5,376,736.80-8,065,105.20-1,387,648.80

Finding the Fourth Proportional to 5,376,736.80, 8,065,105.20 and 1,387,648.80

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Solution

The fourth proportional to 5,376,736.80, 8,065,105.20 and 1,387,648.80 is: 2,081,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376,736.80 : 8,065,105.20 = 1,387,648.80 : x
  2. Step 2: Convert to fraction form
    5,376,736.80/8,065,105.20 = 1,387,648.80/x
  3. Step 3: Cross multiply
    5,376,736.80x = 8,065,105.20 × 1,387,648.80
  4. Step 4: Simplify right side
    5,376,736.80x = 11,191,533,552,653.76
  5. Step 5: Solve for x
    x = 11,191,533,552,653.76/5,376,736.80
  6. Step 6: Final answer
    x = 2,081,473.20

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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.