Home / 5,315,808.40-7,977,649.20-2,123,225.80

Finding the Fourth Proportional to 5,315,808.40, 7,977,649.20 and 2,123,225.80

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Solution

The fourth proportional to 5,315,808.40, 7,977,649.20 and 2,123,225.80 is: 3,186,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,808.40 : 7,977,649.20 = 2,123,225.80 : x
  2. Step 2: Convert to fraction form
    5,315,808.40/7,977,649.20 = 2,123,225.80/x
  3. Step 3: Cross multiply
    5,315,808.40x = 7,977,649.20 × 2,123,225.80
  4. Step 4: Simplify right side
    5,315,808.40x = 16,938,350,604,789.36
  5. Step 5: Solve for x
    x = 16,938,350,604,789.36/5,315,808.40
  6. Step 6: Final answer
    x = 3,186,411.05

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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.