Home / 5,425,038.40-8,139,631.20-5,340,020.80

Finding the Fourth Proportional to 5,425,038.40, 8,139,631.20 and 5,340,020.80

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Solution

The fourth proportional to 5,425,038.40, 8,139,631.20 and 5,340,020.80 is: 8,012,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425,038.40 : 8,139,631.20 = 5,340,020.80 : x
  2. Step 2: Convert to fraction form
    5,425,038.40/8,139,631.20 = 5,340,020.80/x
  3. Step 3: Cross multiply
    5,425,038.40x = 8,139,631.20 × 5,340,020.80
  4. Step 4: Simplify right side
    5,425,038.40x = 43,465,799,912,328.96
  5. Step 5: Solve for x
    x = 43,465,799,912,328.96/5,425,038.40
  6. Step 6: Final answer
    x = 8,012,072.30

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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.