Home / 75,629,235.20-113,443,852.80-21,781,990.40

Finding the Fourth Proportional to 75,629,235.20, 113,443,852.80 and 21,781,990.40

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Solution

The fourth proportional to 75,629,235.20, 113,443,852.80 and 21,781,990.40 is: 32,672,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,629,235.20 : 113,443,852.80 = 21,781,990.40 : x
  2. Step 2: Convert to fraction form
    75,629,235.20/113,443,852.80 = 21,781,990.40/x
  3. Step 3: Cross multiply
    75,629,235.20x = 113,443,852.80 × 21,781,990.40
  4. Step 4: Simplify right side
    75,629,235.20x = 2,471,032,912,628,613
  5. Step 5: Solve for x
    x = 2,471,032,912,628,613/75,629,235.20
  6. Step 6: Final answer
    x = 32,672,985.60

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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.