Home / 5,315,807.90-7,977,648.45-2,123,225.30

Finding the Fourth Proportional to 5,315,807.90, 7,977,648.45 and 2,123,225.30

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Solution

The fourth proportional to 5,315,807.90, 7,977,648.45 and 2,123,225.30 is: 3,186,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,807.90 : 7,977,648.45 = 2,123,225.30 : x
  2. Step 2: Convert to fraction form
    5,315,807.90/7,977,648.45 = 2,123,225.30/x
  3. Step 3: Cross multiply
    5,315,807.90x = 7,977,648.45 × 2,123,225.30
  4. Step 4: Simplify right side
    5,315,807.90x = 16,938,345,023,545.78
  5. Step 5: Solve for x
    x = 16,938,345,023,545.78/5,315,807.90
  6. Step 6: Final answer
    x = 3,186,410.30

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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.