Home / 5,173,739.12-7,139,767.07-2,818,925.15

Finding the Fourth Proportional to 5,173,739.12, 7,139,767.07 and 2,818,925.15

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Solution

The fourth proportional to 5,173,739.12, 7,139,767.07 and 2,818,925.15 is: 3,890,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173,739.12 : 7,139,767.07 = 2,818,925.15 : x
  2. Step 2: Convert to fraction form
    5,173,739.12/7,139,767.07 = 2,818,925.15/x
  3. Step 3: Cross multiply
    5,173,739.12x = 7,139,767.07 × 2,818,925.15
  4. Step 4: Simplify right side
    5,173,739.12x = 20,126,468,930,113.29
  5. Step 5: Solve for x
    x = 20,126,468,930,113.29/5,173,739.12
  6. Step 6: Final answer
    x = 3,890,120.56

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1.5x scale

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.