Home / 65,921,103.70-98,811,671.55-31,820,233.30

Finding the Fourth Proportional to 65,921,103.70, 98,811,671.55 and 31,820,233.30

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Solution

The fourth proportional to 65,921,103.70, 98,811,671.55 and 31,820,233.30 is: 47,696,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921,103.70 : 98,811,671.55 = 31,820,233.30 : x
  2. Step 2: Convert to fraction form
    65,921,103.70/98,811,671.55 = 31,820,233.30/x
  3. Step 3: Cross multiply
    65,921,103.70x = 98,811,671.55 × 31,820,233.30
  4. Step 4: Simplify right side
    65,921,103.70x = 3,144,210,441,483,972.50
  5. Step 5: Solve for x
    x = 3,144,210,441,483,972.50/65,921,103.70
  6. Step 6: Final answer
    x = 47,696,568.55

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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.