Home / 72,891,054.40-109,338,331.20-21,774,740.80

Finding the Fourth Proportional to 72,891,054.40, 109,338,331.20 and 21,774,740.80

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Solution

The fourth proportional to 72,891,054.40, 109,338,331.20 and 21,774,740.80 is: 32,662,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,054.40 : 109,338,331.20 = 21,774,740.80 : x
  2. Step 2: Convert to fraction form
    72,891,054.40/109,338,331.20 = 21,774,740.80/x
  3. Step 3: Cross multiply
    72,891,054.40x = 109,338,331.20 × 21,774,740.80
  4. Step 4: Simplify right side
    72,891,054.40x = 2,380,813,821,384,553
  5. Step 5: Solve for x
    x = 2,380,813,821,384,553/72,891,054.40
  6. Step 6: Final answer
    x = 32,662,633.86

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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.