Home / 5,514,779.80-8,278,908.90-3,120,290.20

Finding the Fourth Proportional to 5,514,779.80, 8,278,908.90 and 3,120,290.20

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Solution

The fourth proportional to 5,514,779.80, 8,278,908.90 and 3,120,290.20 is: 4,684,248.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514,779.80 : 8,278,908.90 = 3,120,290.20 : x
  2. Step 2: Convert to fraction form
    5,514,779.80/8,278,908.90 = 3,120,290.20/x
  3. Step 3: Cross multiply
    5,514,779.80x = 8,278,908.90 × 3,120,290.20
  4. Step 4: Simplify right side
    5,514,779.80x = 25,832,598,307,362.78
  5. Step 5: Solve for x
    x = 25,832,598,307,362.78/5,514,779.80
  6. Step 6: Final answer
    x = 4,684,248.37

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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.