Home / 412,928,140.30-619,392,210.45-238,349,771.80

Finding the Fourth Proportional to 412,928,140.30, 619,392,210.45 and 238,349,771.80

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Solution

The fourth proportional to 412,928,140.30, 619,392,210.45 and 238,349,771.80 is: 357,524,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,928,140.30 : 619,392,210.45 = 238,349,771.80 : x
  2. Step 2: Convert to fraction form
    412,928,140.30/619,392,210.45 = 238,349,771.80/x
  3. Step 3: Cross multiply
    412,928,140.30x = 619,392,210.45 × 238,349,771.80
  4. Step 4: Simplify right side
    412,928,140.30x = 147,631,992,015,455,104
  5. Step 5: Solve for x
    x = 147,631,992,015,455,104/412,928,140.30
  6. Step 6: Final answer
    x = 357,524,657.70

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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.