Home / 278,830,371.40-418,245,557.10-167,865,490.60

Finding the Fourth Proportional to 278,830,371.40, 418,245,557.10 and 167,865,490.60

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Solution

The fourth proportional to 278,830,371.40, 418,245,557.10 and 167,865,490.60 is: 251,798,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,830,371.40 : 418,245,557.10 = 167,865,490.60 : x
  2. Step 2: Convert to fraction form
    278,830,371.40/418,245,557.10 = 167,865,490.60/x
  3. Step 3: Cross multiply
    278,830,371.40x = 418,245,557.10 × 167,865,490.60
  4. Step 4: Simplify right side
    278,830,371.40x = 70,208,995,633,861,816
  5. Step 5: Solve for x
    x = 70,208,995,633,861,816/278,830,371.40
  6. Step 6: Final answer
    x = 251,798,235.90

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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.