Home / 257,950,476.80-386,914,907.20-83,069,639.82

Finding the Fourth Proportional to 257,950,476.80, 386,914,907.20 and 83,069,639.82

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Solution

The fourth proportional to 257,950,476.80, 386,914,907.20 and 83,069,639.82 is: 124,600,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,950,476.80 : 386,914,907.20 = 83,069,639.82 : x
  2. Step 2: Convert to fraction form
    257,950,476.80/386,914,907.20 = 83,069,639.82/x
  3. Step 3: Cross multiply
    257,950,476.80x = 386,914,907.20 × 83,069,639.82
  4. Step 4: Simplify right side
    257,950,476.80x = 32,140,881,982,092,720
  5. Step 5: Solve for x
    x = 32,140,881,982,092,720/257,950,476.80
  6. Step 6: Final answer
    x = 124,600,979.15

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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.