Home / 128,700,324.80-193,428,400.80-112,072,126.40

Finding the Fourth Proportional to 128,700,324.80, 193,428,400.80 and 112,072,126.40

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Solution

The fourth proportional to 128,700,324.80, 193,428,400.80 and 112,072,126.40 is: 168,437,276.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,700,324.80 : 193,428,400.80 = 112,072,126.40 : x
  2. Step 2: Convert to fraction form
    128,700,324.80/193,428,400.80 = 112,072,126.40/x
  3. Step 3: Cross multiply
    128,700,324.80x = 193,428,400.80 × 112,072,126.40
  4. Step 4: Simplify right side
    128,700,324.80x = 21,677,932,183,807,464
  5. Step 5: Solve for x
    x = 21,677,932,183,807,464/128,700,324.80
  6. Step 6: Final answer
    x = 168,437,276.42

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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.