Home / 218,675,266.80-328,016,788.20-65,323,215.60

Finding the Fourth Proportional to 218,675,266.80, 328,016,788.20 and 65,323,215.60

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Solution

The fourth proportional to 218,675,266.80, 328,016,788.20 and 65,323,215.60 is: 97,985,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,675,266.80 : 328,016,788.20 = 65,323,215.60 : x
  2. Step 2: Convert to fraction form
    218,675,266.80/328,016,788.20 = 65,323,215.60/x
  3. Step 3: Cross multiply
    218,675,266.80x = 328,016,788.20 × 65,323,215.60
  4. Step 4: Simplify right side
    218,675,266.80x = 21,427,111,376,008,136
  5. Step 5: Solve for x
    x = 21,427,111,376,008,136/218,675,266.80
  6. Step 6: Final answer
    x = 97,985,984.83

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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.