Home / 10,780,428.80-16,170,643.20-6,528,900.80

Finding the Fourth Proportional to 10,780,428.80, 16,170,643.20 and 6,528,900.80

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Solution

The fourth proportional to 10,780,428.80, 16,170,643.20 and 6,528,900.80 is: 9,793,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,428.80 : 16,170,643.20 = 6,528,900.80 : x
  2. Step 2: Convert to fraction form
    10,780,428.80/16,170,643.20 = 6,528,900.80/x
  3. Step 3: Cross multiply
    10,780,428.80x = 16,170,643.20 × 6,528,900.80
  4. Step 4: Simplify right side
    10,780,428.80x = 105,576,525,324,994.55
  5. Step 5: Solve for x
    x = 105,576,525,324,994.55/10,780,428.80
  6. Step 6: Final answer
    x = 9,793,351.20

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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.