Home / 199,319,707.20-298,979,560.80-197,976,014.40

Finding the Fourth Proportional to 199,319,707.20, 298,979,560.80 and 197,976,014.40

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Solution

The fourth proportional to 199,319,707.20, 298,979,560.80 and 197,976,014.40 is: 296,964,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,319,707.20 : 298,979,560.80 = 197,976,014.40 : x
  2. Step 2: Convert to fraction form
    199,319,707.20/298,979,560.80 = 197,976,014.40/x
  3. Step 3: Cross multiply
    199,319,707.20x = 298,979,560.80 × 197,976,014.40
  4. Step 4: Simplify right side
    199,319,707.20x = 59,190,781,834,246,480
  5. Step 5: Solve for x
    x = 59,190,781,834,246,480/199,319,707.20
  6. Step 6: Final answer
    x = 296,964,021.60

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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.