Home / 81,290,981.23-121,910,774.33-26,694,566.35

Finding the Fourth Proportional to 81,290,981.23, 121,910,774.33 and 26,694,566.35

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Solution

The fourth proportional to 81,290,981.23, 121,910,774.33 and 26,694,566.35 is: 40,033,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,290,981.23 : 121,910,774.33 = 26,694,566.35 : x
  2. Step 2: Convert to fraction form
    81,290,981.23/121,910,774.33 = 26,694,566.35/x
  3. Step 3: Cross multiply
    81,290,981.23x = 121,910,774.33 × 26,694,566.35
  4. Step 4: Simplify right side
    81,290,981.23x = 3,254,355,254,370,102
  5. Step 5: Solve for x
    x = 3,254,355,254,370,102/81,290,981.23
  6. Step 6: Final answer
    x = 40,033,410.90

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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.