Home / 412,928,139.80-619,392,209.70-238,349,771.30

Finding the Fourth Proportional to 412,928,139.80, 619,392,209.70 and 238,349,771.30

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Solution

The fourth proportional to 412,928,139.80, 619,392,209.70 and 238,349,771.30 is: 357,524,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,928,139.80 : 619,392,209.70 = 238,349,771.30 : x
  2. Step 2: Convert to fraction form
    412,928,139.80/619,392,209.70 = 238,349,771.30/x
  3. Step 3: Cross multiply
    412,928,139.80x = 619,392,209.70 × 238,349,771.30
  4. Step 4: Simplify right side
    412,928,139.80x = 147,631,991,526,996,672
  5. Step 5: Solve for x
    x = 147,631,991,526,996,672/412,928,139.80
  6. Step 6: Final answer
    x = 357,524,656.95

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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.