Home / 5,258,021.20-7,887,031.80-1,891,790.80

Finding the Fourth Proportional to 5,258,021.20, 7,887,031.80 and 1,891,790.80

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Solution

The fourth proportional to 5,258,021.20, 7,887,031.80 and 1,891,790.80 is: 2,837,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258,021.20 : 7,887,031.80 = 1,891,790.80 : x
  2. Step 2: Convert to fraction form
    5,258,021.20/7,887,031.80 = 1,891,790.80/x
  3. Step 3: Cross multiply
    5,258,021.20x = 7,887,031.80 × 1,891,790.80
  4. Step 4: Simplify right side
    5,258,021.20x = 14,920,614,198,547.44
  5. Step 5: Solve for x
    x = 14,920,614,198,547.44/5,258,021.20
  6. Step 6: Final answer
    x = 2,837,686.20

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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.