Home / 25,657,729.36-35,394,242.52-15,865,043.20

Finding the Fourth Proportional to 25,657,729.36, 35,394,242.52 and 15,865,043.20

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Solution

The fourth proportional to 25,657,729.36, 35,394,242.52 and 15,865,043.20 is: 21,885,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657,729.36 : 35,394,242.52 = 15,865,043.20 : x
  2. Step 2: Convert to fraction form
    25,657,729.36/35,394,242.52 = 15,865,043.20/x
  3. Step 3: Cross multiply
    25,657,729.36x = 35,394,242.52 × 15,865,043.20
  4. Step 4: Simplify right side
    25,657,729.36x = 561,531,186,611,076.88
  5. Step 5: Solve for x
    x = 561,531,186,611,076.88/25,657,729.36
  6. Step 6: Final answer
    x = 21,885,459.10

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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.