Home / 399,429,387.20-599,144,080.80-245,576,561.60

Finding the Fourth Proportional to 399,429,387.20, 599,144,080.80 and 245,576,561.60

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Solution

The fourth proportional to 399,429,387.20, 599,144,080.80 and 245,576,561.60 is: 368,364,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,429,387.20 : 599,144,080.80 = 245,576,561.60 : x
  2. Step 2: Convert to fraction form
    399,429,387.20/599,144,080.80 = 245,576,561.60/x
  3. Step 3: Cross multiply
    399,429,387.20x = 599,144,080.80 × 245,576,561.60
  4. Step 4: Simplify right side
    399,429,387.20x = 147,135,743,265,856,576
  5. Step 5: Solve for x
    x = 147,135,743,265,856,576/399,429,387.20
  6. Step 6: Final answer
    x = 368,364,842.40

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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.