Home / 3,551,619.90-5,328,207.45-1,421,168.70

Finding the Fourth Proportional to 3,551,619.90, 5,328,207.45 and 1,421,168.70

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Solution

The fourth proportional to 3,551,619.90, 5,328,207.45 and 1,421,168.70 is: 2,132,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551,619.90 : 5,328,207.45 = 1,421,168.70 : x
  2. Step 2: Convert to fraction form
    3,551,619.90/5,328,207.45 = 1,421,168.70/x
  3. Step 3: Cross multiply
    3,551,619.90x = 5,328,207.45 × 1,421,168.70
  4. Step 4: Simplify right side
    3,551,619.90x = 7,572,281,655,046.82
  5. Step 5: Solve for x
    x = 7,572,281,655,046.82/3,551,619.90
  6. Step 6: Final answer
    x = 2,132,064.20

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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.