Home / 699,841,221.20-1,049,761,831.80-215,104,043.60

Finding the Fourth Proportional to 699,841,221.20, 1,049,761,831.80 and 215,104,043.60

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Solution

The fourth proportional to 699,841,221.20, 1,049,761,831.80 and 215,104,043.60 is: 322,656,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,841,221.20 : 1,049,761,831.80 = 215,104,043.60 : x
  2. Step 2: Convert to fraction form
    699,841,221.20/1,049,761,831.80 = 215,104,043.60/x
  3. Step 3: Cross multiply
    699,841,221.20x = 1,049,761,831.80 × 215,104,043.60
  4. Step 4: Simplify right side
    699,841,221.20x = 225,808,014,837,123,040
  5. Step 5: Solve for x
    x = 225,808,014,837,123,040/699,841,221.20
  6. Step 6: Final answer
    x = 322,656,065.40

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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.