Home / 491,775,428.80-737,946,578.40-185,287,499.20

Finding the Fourth Proportional to 491,775,428.80, 737,946,578.40 and 185,287,499.20

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Solution

The fourth proportional to 491,775,428.80, 737,946,578.40 and 185,287,499.20 is: 278,038,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,775,428.80 : 737,946,578.40 = 185,287,499.20 : x
  2. Step 2: Convert to fraction form
    491,775,428.80/737,946,578.40 = 185,287,499.20/x
  3. Step 3: Cross multiply
    491,775,428.80x = 737,946,578.40 × 185,287,499.20
  4. Step 4: Simplify right side
    491,775,428.80x = 136,732,276,054,932,720
  5. Step 5: Solve for x
    x = 136,732,276,054,932,720/491,775,428.80
  6. Step 6: Final answer
    x = 278,038,039.41

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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.