Home / 6,390,948.85-8,819,727.07-3,779,691.36

Finding the Fourth Proportional to 6,390,948.85, 8,819,727.07 and 3,779,691.36

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Solution

The fourth proportional to 6,390,948.85, 8,819,727.07 and 3,779,691.36 is: 5,216,102.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390,948.85 : 8,819,727.07 = 3,779,691.36 : x
  2. Step 2: Convert to fraction form
    6,390,948.85/8,819,727.07 = 3,779,691.36/x
  3. Step 3: Cross multiply
    6,390,948.85x = 8,819,727.07 × 3,779,691.36
  4. Step 4: Simplify right side
    6,390,948.85x = 33,335,846,168,600.84
  5. Step 5: Solve for x
    x = 33,335,846,168,600.84/6,390,948.85
  6. Step 6: Final answer
    x = 5,216,102.79

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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.