Home / 51,538,990.64-71,123,852.76-28,334,512.40

Finding the Fourth Proportional to 51,538,990.64, 71,123,852.76 and 28,334,512.40

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Solution

The fourth proportional to 51,538,990.64, 71,123,852.76 and 28,334,512.40 is: 39,101,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,538,990.64 : 71,123,852.76 = 28,334,512.40 : x
  2. Step 2: Convert to fraction form
    51,538,990.64/71,123,852.76 = 28,334,512.40/x
  3. Step 3: Cross multiply
    51,538,990.64x = 71,123,852.76 × 28,334,512.40
  4. Step 4: Simplify right side
    51,538,990.64x = 2,015,259,687,963,994.25
  5. Step 5: Solve for x
    x = 2,015,259,687,963,994.25/51,538,990.64
  6. Step 6: Final answer
    x = 39,101,652.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.