Home / 538,910,836.80-808,366,255.20-193,917,710.40

Finding the Fourth Proportional to 538,910,836.80, 808,366,255.20 and 193,917,710.40

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Solution

The fourth proportional to 538,910,836.80, 808,366,255.20 and 193,917,710.40 is: 290,876,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,910,836.80 : 808,366,255.20 = 193,917,710.40 : x
  2. Step 2: Convert to fraction form
    538,910,836.80/808,366,255.20 = 193,917,710.40/x
  3. Step 3: Cross multiply
    538,910,836.80x = 808,366,255.20 × 193,917,710.40
  4. Step 4: Simplify right side
    538,910,836.80x = 156,756,533,373,006,112
  5. Step 5: Solve for x
    x = 156,756,533,373,006,112/538,910,836.80
  6. Step 6: Final answer
    x = 290,876,565.60

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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.