Home / 216,843,861.78-325,143,561.18-71,238,327.99

Finding the Fourth Proportional to 216,843,861.78, 325,143,561.18 and 71,238,327.99

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Solution

The fourth proportional to 216,843,861.78, 325,143,561.18 and 71,238,327.99 is: 106,817,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,843,861.78 : 325,143,561.18 = 71,238,327.99 : x
  2. Step 2: Convert to fraction form
    216,843,861.78/325,143,561.18 = 71,238,327.99/x
  3. Step 3: Cross multiply
    216,843,861.78x = 325,143,561.18 × 71,238,327.99
  4. Step 4: Simplify right side
    216,843,861.78x = 23,162,683,655,177,472
  5. Step 5: Solve for x
    x = 23,162,683,655,177,472/216,843,861.78
  6. Step 6: Final answer
    x = 106,817,336.05

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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.