Home / 207,178,124.20-310,767,186.30-99,682,700.20

Finding the Fourth Proportional to 207,178,124.20, 310,767,186.30 and 99,682,700.20

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Solution

The fourth proportional to 207,178,124.20, 310,767,186.30 and 99,682,700.20 is: 149,524,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,178,124.20 : 310,767,186.30 = 99,682,700.20 : x
  2. Step 2: Convert to fraction form
    207,178,124.20/310,767,186.30 = 99,682,700.20/x
  3. Step 3: Cross multiply
    207,178,124.20x = 310,767,186.30 × 99,682,700.20
  4. Step 4: Simplify right side
    207,178,124.20x = 30,978,112,263,940,448
  5. Step 5: Solve for x
    x = 30,978,112,263,940,448/207,178,124.20
  6. Step 6: Final answer
    x = 149,524,050.30

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1.5x scale

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.