Home / 65,921,208.20-98,811,828.30-31,820,337.80

Finding the Fourth Proportional to 65,921,208.20, 98,811,828.30 and 31,820,337.80

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Solution

The fourth proportional to 65,921,208.20, 98,811,828.30 and 31,820,337.80 is: 47,696,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921,208.20 : 98,811,828.30 = 31,820,337.80 : x
  2. Step 2: Convert to fraction form
    65,921,208.20/98,811,828.30 = 31,820,337.80/x
  3. Step 3: Cross multiply
    65,921,208.20x = 98,811,828.30 × 31,820,337.80
  4. Step 4: Simplify right side
    65,921,208.20x = 3,144,225,755,141,599.50
  5. Step 5: Solve for x
    x = 3,144,225,755,141,599.50/65,921,208.20
  6. Step 6: Final answer
    x = 47,696,725.24

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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.