Home / 129,295,568.20-194,037,830.70-91,031,816.20

Finding the Fourth Proportional to 129,295,568.20, 194,037,830.70 and 91,031,816.20

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Solution

The fourth proportional to 129,295,568.20, 194,037,830.70 and 91,031,816.20 is: 136,614,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,295,568.20 : 194,037,830.70 = 91,031,816.20 : x
  2. Step 2: Convert to fraction form
    129,295,568.20/194,037,830.70 = 91,031,816.20/x
  3. Step 3: Cross multiply
    129,295,568.20x = 194,037,830.70 × 91,031,816.20
  4. Step 4: Simplify right side
    129,295,568.20x = 17,663,616,140,129,116
  5. Step 5: Solve for x
    x = 17,663,616,140,129,116/129,295,568.20
  6. Step 6: Final answer
    x = 136,614,242.75

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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.