Home / 5,642,639.30-7,788,612.57-3,605,456.90

Finding the Fourth Proportional to 5,642,639.30, 7,788,612.57 and 3,605,456.90

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Solution

The fourth proportional to 5,642,639.30, 7,788,612.57 and 3,605,456.90 is: 4,976,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642,639.30 : 7,788,612.57 = 3,605,456.90 : x
  2. Step 2: Convert to fraction form
    5,642,639.30/7,788,612.57 = 3,605,456.90/x
  3. Step 3: Cross multiply
    5,642,639.30x = 7,788,612.57 × 3,605,456.90
  4. Step 4: Simplify right side
    5,642,639.30x = 28,081,506,931,933.23
  5. Step 5: Solve for x
    x = 28,081,506,931,933.23/5,642,639.30
  6. Step 6: Final answer
    x = 4,976,661.71

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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.