Home / 5,637,638.40-7,778,131.20-3,156,494.08

Finding the Fourth Proportional to 5,637,638.40, 7,778,131.20 and 3,156,494.08

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Solution

The fourth proportional to 5,637,638.40, 7,778,131.20 and 3,156,494.08 is: 4,354,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637,638.40 : 7,778,131.20 = 3,156,494.08 : x
  2. Step 2: Convert to fraction form
    5,637,638.40/7,778,131.20 = 3,156,494.08/x
  3. Step 3: Cross multiply
    5,637,638.40x = 7,778,131.20 × 3,156,494.08
  4. Step 4: Simplify right side
    5,637,638.40x = 24,551,625,086,263.30
  5. Step 5: Solve for x
    x = 24,551,625,086,263.30/5,637,638.40
  6. Step 6: Final answer
    x = 4,354,948.53

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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.