Home / 90,023,751.50-135,035,628.86-21,865,983.98

Finding the Fourth Proportional to 90,023,751.50, 135,035,628.86 and 21,865,983.98

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Solution

The fourth proportional to 90,023,751.50, 135,035,628.86 and 21,865,983.98 is: 32,798,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,023,751.50 : 135,035,628.86 = 21,865,983.98 : x
  2. Step 2: Convert to fraction form
    90,023,751.50/135,035,628.86 = 21,865,983.98/x
  3. Step 3: Cross multiply
    90,023,751.50x = 135,035,628.86 × 21,865,983.98
  4. Step 4: Simplify right side
    90,023,751.50x = 2,952,686,897,381,986
  5. Step 5: Solve for x
    x = 2,952,686,897,381,986/90,023,751.50
  6. Step 6: Final answer
    x = 32,798,976.36

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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.