Home / 90,023,749.49-135,035,625.86-21,865,981.97

Finding the Fourth Proportional to 90,023,749.49, 135,035,625.86 and 21,865,981.97

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Solution

The fourth proportional to 90,023,749.49, 135,035,625.86 and 21,865,981.97 is: 32,798,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,023,749.49 : 135,035,625.86 = 21,865,981.97 : x
  2. Step 2: Convert to fraction form
    90,023,749.49/135,035,625.86 = 21,865,981.97/x
  3. Step 3: Cross multiply
    90,023,749.49x = 135,035,625.86 × 21,865,981.97
  4. Step 4: Simplify right side
    90,023,749.49x = 2,952,686,560,253,095.50
  5. Step 5: Solve for x
    x = 2,952,686,560,253,095.50/90,023,749.49
  6. Step 6: Final answer
    x = 32,798,973.35

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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.