Home / 5,315,809.40-7,977,650.70-2,123,226.80

Finding the Fourth Proportional to 5,315,809.40, 7,977,650.70 and 2,123,226.80

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Solution

The fourth proportional to 5,315,809.40, 7,977,650.70 and 2,123,226.80 is: 3,186,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,809.40 : 7,977,650.70 = 2,123,226.80 : x
  2. Step 2: Convert to fraction form
    5,315,809.40/7,977,650.70 = 2,123,226.80/x
  3. Step 3: Cross multiply
    5,315,809.40x = 7,977,650.70 × 2,123,226.80
  4. Step 4: Simplify right side
    5,315,809.40x = 16,938,361,767,278.76
  5. Step 5: Solve for x
    x = 16,938,361,767,278.76/5,315,809.40
  6. Step 6: Final answer
    x = 3,186,412.55

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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.