Home / 213,026,176.80-319,539,265.20-91,857,628.80

Finding the Fourth Proportional to 213,026,176.80, 319,539,265.20 and 91,857,628.80

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Solution

The fourth proportional to 213,026,176.80, 319,539,265.20 and 91,857,628.80 is: 137,786,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,026,176.80 : 319,539,265.20 = 91,857,628.80 : x
  2. Step 2: Convert to fraction form
    213,026,176.80/319,539,265.20 = 91,857,628.80/x
  3. Step 3: Cross multiply
    213,026,176.80x = 319,539,265.20 × 91,857,628.80
  4. Step 4: Simplify right side
    213,026,176.80x = 29,352,119,209,766,356
  5. Step 5: Solve for x
    x = 29,352,119,209,766,356/213,026,176.80
  6. Step 6: Final answer
    x = 137,786,443.20

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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.