Home / 426,384,233.40-639,576,350.10-357,509,479.80

Finding the Fourth Proportional to 426,384,233.40, 639,576,350.10 and 357,509,479.80

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Solution

The fourth proportional to 426,384,233.40, 639,576,350.10 and 357,509,479.80 is: 536,264,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,384,233.40 : 639,576,350.10 = 357,509,479.80 : x
  2. Step 2: Convert to fraction form
    426,384,233.40/639,576,350.10 = 357,509,479.80/x
  3. Step 3: Cross multiply
    426,384,233.40x = 639,576,350.10 × 357,509,479.80
  4. Step 4: Simplify right side
    426,384,233.40x = 228,654,608,216,633,696
  5. Step 5: Solve for x
    x = 228,654,608,216,633,696/426,384,233.40
  6. Step 6: Final answer
    x = 536,264,219.70

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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.