Home / 7,140,650-9,854,065.84-3,877,438.28

Finding the Fourth Proportional to 7,140,650, 9,854,065.84 and 3,877,438.28

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Solution

The fourth proportional to 7,140,650, 9,854,065.84 and 3,877,438.28 is: 5,350,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,650 : 9,854,065.84 = 3,877,438.28 : x
  2. Step 2: Convert to fraction form
    7,140,650/9,854,065.84 = 3,877,438.28/x
  3. Step 3: Cross multiply
    7,140,650x = 9,854,065.84 × 3,877,438.28
  4. Step 4: Simplify right side
    7,140,650x = 38,208,532,101,656.35
  5. Step 5: Solve for x
    x = 38,208,532,101,656.35/7,140,650
  6. Step 6: Final answer
    x = 5,350,847.91

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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.