Home / 13,159,105.20-19,738,657.80-7,490,401.20

Finding the Fourth Proportional to 13,159,105.20, 19,738,657.80 and 7,490,401.20

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Solution

The fourth proportional to 13,159,105.20, 19,738,657.80 and 7,490,401.20 is: 11,235,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159,105.20 : 19,738,657.80 = 7,490,401.20 : x
  2. Step 2: Convert to fraction form
    13,159,105.20/19,738,657.80 = 7,490,401.20/x
  3. Step 3: Cross multiply
    13,159,105.20x = 19,738,657.80 × 7,490,401.20
  4. Step 4: Simplify right side
    13,159,105.20x = 147,850,466,071,509.38
  5. Step 5: Solve for x
    x = 147,850,466,071,509.38/13,159,105.20
  6. Step 6: Final answer
    x = 11,235,601.80

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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.