Home / 257,540,834,954.52-386,368,866,097.20-78,480,835,711.38

Finding the Fourth Proportional to 257,540,834,954.52, 386,368,866,097.20 and 78,480,835,711.38

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Solution

The fourth proportional to 257,540,834,954.52, 386,368,866,097.20 and 78,480,835,711.38 is: 117,738,810,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,540,834,954.52 : 386,368,866,097.20 = 78,480,835,711.38 : x
  2. Step 2: Convert to fraction form
    257,540,834,954.52/386,368,866,097.20 = 78,480,835,711.38/x
  3. Step 3: Cross multiply
    257,540,834,954.52x = 386,368,866,097.20 × 78,480,835,711.38
  4. Step 4: Simplify right side
    257,540,834,954.52x = 30,322,551,504,166,535,036,928
  5. Step 5: Solve for x
    x = 30,322,551,504,166,535,036,928/257,540,834,954.52
  6. Step 6: Final answer
    x = 117,738,810,272.64

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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.