Home / 123,554,015.20-185,331,022.80-112,972,434.40

Finding the Fourth Proportional to 123,554,015.20, 185,331,022.80 and 112,972,434.40

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Solution

The fourth proportional to 123,554,015.20, 185,331,022.80 and 112,972,434.40 is: 169,458,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,554,015.20 : 185,331,022.80 = 112,972,434.40 : x
  2. Step 2: Convert to fraction form
    123,554,015.20/185,331,022.80 = 112,972,434.40/x
  3. Step 3: Cross multiply
    123,554,015.20x = 185,331,022.80 × 112,972,434.40
  4. Step 4: Simplify right side
    123,554,015.20x = 20,937,296,815,557,908
  5. Step 5: Solve for x
    x = 20,937,296,815,557,908/123,554,015.20
  6. Step 6: Final answer
    x = 169,458,651.60

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1.5x scale

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.