Home / 205,094,681.20-307,642,021.80-197,928,319.60

Finding the Fourth Proportional to 205,094,681.20, 307,642,021.80 and 197,928,319.60

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Solution

The fourth proportional to 205,094,681.20, 307,642,021.80 and 197,928,319.60 is: 296,892,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,094,681.20 : 307,642,021.80 = 197,928,319.60 : x
  2. Step 2: Convert to fraction form
    205,094,681.20/307,642,021.80 = 197,928,319.60/x
  3. Step 3: Cross multiply
    205,094,681.20x = 307,642,021.80 × 197,928,319.60
  4. Step 4: Simplify right side
    205,094,681.20x = 60,891,068,413,220,568
  5. Step 5: Solve for x
    x = 60,891,068,413,220,568/205,094,681.20
  6. Step 6: Final answer
    x = 296,892,479.40

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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.