Home / 2,118,143.40-3,175,246.80-1,478,445.90

Finding the Fourth Proportional to 2,118,143.40, 3,175,246.80 and 1,478,445.90

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Solution

The fourth proportional to 2,118,143.40, 3,175,246.80 and 1,478,445.90 is: 2,216,294.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,143.40 : 3,175,246.80 = 1,478,445.90 : x
  2. Step 2: Convert to fraction form
    2,118,143.40/3,175,246.80 = 1,478,445.90/x
  3. Step 3: Cross multiply
    2,118,143.40x = 3,175,246.80 × 1,478,445.90
  4. Step 4: Simplify right side
    2,118,143.40x = 4,694,430,612,948.12
  5. Step 5: Solve for x
    x = 4,694,430,612,948.12/2,118,143.40
  6. Step 6: Final answer
    x = 2,216,294.99

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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.