Home / 378,434,406.80-567,651,610.20-342,154,701.20

Finding the Fourth Proportional to 378,434,406.80, 567,651,610.20 and 342,154,701.20

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Solution

The fourth proportional to 378,434,406.80, 567,651,610.20 and 342,154,701.20 is: 513,232,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,434,406.80 : 567,651,610.20 = 342,154,701.20 : x
  2. Step 2: Convert to fraction form
    378,434,406.80/567,651,610.20 = 342,154,701.20/x
  3. Step 3: Cross multiply
    378,434,406.80x = 567,651,610.20 × 342,154,701.20
  4. Step 4: Simplify right side
    378,434,406.80x = 194,224,667,073,679,872
  5. Step 5: Solve for x
    x = 194,224,667,073,679,872/378,434,406.80
  6. Step 6: Final answer
    x = 513,232,051.80

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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.