Home / 681,011,567.80-1,021,660,818.90-220,913,812.60

Finding the Fourth Proportional to 681,011,567.80, 1,021,660,818.90 and 220,913,812.60

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Solution

The fourth proportional to 681,011,567.80, 1,021,660,818.90 and 220,913,812.60 is: 331,417,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,011,567.80 : 1,021,660,818.90 = 220,913,812.60 : x
  2. Step 2: Convert to fraction form
    681,011,567.80/1,021,660,818.90 = 220,913,812.60/x
  3. Step 3: Cross multiply
    681,011,567.80x = 1,021,660,818.90 × 220,913,812.60
  4. Step 4: Simplify right side
    681,011,567.80x = 225,698,986,687,237,120
  5. Step 5: Solve for x
    x = 225,698,986,687,237,120/681,011,567.80
  6. Step 6: Final answer
    x = 331,417,258.32

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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.