Home / 10,402,135.20-15,603,202.80-7,000,912.80

Finding the Fourth Proportional to 10,402,135.20, 15,603,202.80 and 7,000,912.80

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Solution

The fourth proportional to 10,402,135.20, 15,603,202.80 and 7,000,912.80 is: 10,501,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,135.20 : 15,603,202.80 = 7,000,912.80 : x
  2. Step 2: Convert to fraction form
    10,402,135.20/15,603,202.80 = 7,000,912.80/x
  3. Step 3: Cross multiply
    10,402,135.20x = 15,603,202.80 × 7,000,912.80
  4. Step 4: Simplify right side
    10,402,135.20x = 109,236,662,203,515.84
  5. Step 5: Solve for x
    x = 109,236,662,203,515.84/10,402,135.20
  6. Step 6: Final answer
    x = 10,501,369.20

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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.