Home / 681,011,566.80-1,021,660,817.40-220,913,811.60

Finding the Fourth Proportional to 681,011,566.80, 1,021,660,817.40 and 220,913,811.60

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Solution

The fourth proportional to 681,011,566.80, 1,021,660,817.40 and 220,913,811.60 is: 331,417,256.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,011,566.80 : 1,021,660,817.40 = 220,913,811.60 : x
  2. Step 2: Convert to fraction form
    681,011,566.80/1,021,660,817.40 = 220,913,811.60/x
  3. Step 3: Cross multiply
    681,011,566.80x = 1,021,660,817.40 × 220,913,811.60
  4. Step 4: Simplify right side
    681,011,566.80x = 225,698,985,334,205,600
  5. Step 5: Solve for x
    x = 225,698,985,334,205,600/681,011,566.80
  6. Step 6: Final answer
    x = 331,417,256.82

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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.