Home / 402,268,137.20-603,402,205.80-143,775,234.80

Finding the Fourth Proportional to 402,268,137.20, 603,402,205.80 and 143,775,234.80

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Solution

The fourth proportional to 402,268,137.20, 603,402,205.80 and 143,775,234.80 is: 215,662,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,268,137.20 : 603,402,205.80 = 143,775,234.80 : x
  2. Step 2: Convert to fraction form
    402,268,137.20/603,402,205.80 = 143,775,234.80/x
  3. Step 3: Cross multiply
    402,268,137.20x = 603,402,205.80 × 143,775,234.80
  4. Step 4: Simplify right side
    402,268,137.20x = 86,754,293,817,732,928
  5. Step 5: Solve for x
    x = 86,754,293,817,732,928/402,268,137.20
  6. Step 6: Final answer
    x = 215,662,852.20

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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.