Home / 213,163,208.80-319,319,660.40-148,539,983.20

Finding the Fourth Proportional to 213,163,208.80, 319,319,660.40 and 148,539,983.20

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Solution

The fourth proportional to 213,163,208.80, 319,319,660.40 and 148,539,983.20 is: 222,513,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,163,208.80 : 319,319,660.40 = 148,539,983.20 : x
  2. Step 2: Convert to fraction form
    213,163,208.80/319,319,660.40 = 148,539,983.20/x
  3. Step 3: Cross multiply
    213,163,208.80x = 319,319,660.40 × 148,539,983.20
  4. Step 4: Simplify right side
    213,163,208.80x = 47,431,736,991,245,696
  5. Step 5: Solve for x
    x = 47,431,736,991,245,696/213,163,208.80
  6. Step 6: Final answer
    x = 222,513,712.65

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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.