Home / 10,011,981.20-15,009,065.22-3,620,812.68

Finding the Fourth Proportional to 10,011,981.20, 15,009,065.22 and 3,620,812.68

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Solution

The fourth proportional to 10,011,981.20, 15,009,065.22 and 3,620,812.68 is: 5,427,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011,981.20 : 15,009,065.22 = 3,620,812.68 : x
  2. Step 2: Convert to fraction form
    10,011,981.20/15,009,065.22 = 3,620,812.68/x
  3. Step 3: Cross multiply
    10,011,981.20x = 15,009,065.22 × 3,620,812.68
  4. Step 4: Simplify right side
    10,011,981.20x = 54,345,013,663,522.99
  5. Step 5: Solve for x
    x = 54,345,013,663,522.99/10,011,981.20
  6. Step 6: Final answer
    x = 5,427,997.98

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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.