Home / 215,314,385.70-322,955,955.90-84,131,994.81

Finding the Fourth Proportional to 215,314,385.70, 322,955,955.90 and 84,131,994.81

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Solution

The fourth proportional to 215,314,385.70, 322,955,955.90 and 84,131,994.81 is: 126,191,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,314,385.70 : 322,955,955.90 = 84,131,994.81 : x
  2. Step 2: Convert to fraction form
    215,314,385.70/322,955,955.90 = 84,131,994.81/x
  3. Step 3: Cross multiply
    215,314,385.70x = 322,955,955.90 × 84,131,994.81
  4. Step 4: Simplify right side
    215,314,385.70x = 27,170,928,805,637,388
  5. Step 5: Solve for x
    x = 27,170,928,805,637,388/215,314,385.70
  6. Step 6: Final answer
    x = 126,191,887.82

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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.