Home / 4,921,377.12-7,382,021.40-1,555,585.20

Finding the Fourth Proportional to 4,921,377.12, 7,382,021.40 and 1,555,585.20

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Solution

The fourth proportional to 4,921,377.12, 7,382,021.40 and 1,555,585.20 is: 2,333,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921,377.12 : 7,382,021.40 = 1,555,585.20 : x
  2. Step 2: Convert to fraction form
    4,921,377.12/7,382,021.40 = 1,555,585.20/x
  3. Step 3: Cross multiply
    4,921,377.12x = 7,382,021.40 × 1,555,585.20
  4. Step 4: Simplify right side
    4,921,377.12x = 11,483,363,235,923.28
  5. Step 5: Solve for x
    x = 11,483,363,235,923.28/4,921,377.12
  6. Step 6: Final answer
    x = 2,333,363.80

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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.