Home / 10,162,542.45-14,004,927.12-9,975,750.78

Finding the Fourth Proportional to 10,162,542.45, 14,004,927.12 and 9,975,750.78

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Solution

The fourth proportional to 10,162,542.45, 14,004,927.12 and 9,975,750.78 is: 13,747,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,162,542.45 : 14,004,927.12 = 9,975,750.78 : x
  2. Step 2: Convert to fraction form
    10,162,542.45/14,004,927.12 = 9,975,750.78/x
  3. Step 3: Cross multiply
    10,162,542.45x = 14,004,927.12 × 9,975,750.78
  4. Step 4: Simplify right side
    10,162,542.45x = 139,709,662,591,304.39
  5. Step 5: Solve for x
    x = 139,709,662,591,304.39/10,162,542.45
  6. Step 6: Final answer
    x = 13,747,510.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.