Home / 10,436,428.80-15,654,643.20-5,047,660.80

Finding the Fourth Proportional to 10,436,428.80, 15,654,643.20 and 5,047,660.80

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Solution

The fourth proportional to 10,436,428.80, 15,654,643.20 and 5,047,660.80 is: 7,571,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436,428.80 : 15,654,643.20 = 5,047,660.80 : x
  2. Step 2: Convert to fraction form
    10,436,428.80/15,654,643.20 = 5,047,660.80/x
  3. Step 3: Cross multiply
    10,436,428.80x = 15,654,643.20 × 5,047,660.80
  4. Step 4: Simplify right side
    10,436,428.80x = 79,019,328,818,626.55
  5. Step 5: Solve for x
    x = 79,019,328,818,626.55/10,436,428.80
  6. Step 6: Final answer
    x = 7,571,491.20

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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.