Home / 128,952,005.20-193,428,007.80-88,137,336.40

Finding the Fourth Proportional to 128,952,005.20, 193,428,007.80 and 88,137,336.40

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Solution

The fourth proportional to 128,952,005.20, 193,428,007.80 and 88,137,336.40 is: 132,206,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,952,005.20 : 193,428,007.80 = 88,137,336.40 : x
  2. Step 2: Convert to fraction form
    128,952,005.20/193,428,007.80 = 88,137,336.40/x
  3. Step 3: Cross multiply
    128,952,005.20x = 193,428,007.80 × 88,137,336.40
  4. Step 4: Simplify right side
    128,952,005.20x = 17,048,229,392,650,426
  5. Step 5: Solve for x
    x = 17,048,229,392,650,426/128,952,005.20
  6. Step 6: Final answer
    x = 132,206,004.60

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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.