Home / 326,599,538.40-489,899,307.60-217,760,421.60

Finding the Fourth Proportional to 326,599,538.40, 489,899,307.60 and 217,760,421.60

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Solution

The fourth proportional to 326,599,538.40, 489,899,307.60 and 217,760,421.60 is: 326,640,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,599,538.40 : 489,899,307.60 = 217,760,421.60 : x
  2. Step 2: Convert to fraction form
    326,599,538.40/489,899,307.60 = 217,760,421.60/x
  3. Step 3: Cross multiply
    326,599,538.40x = 489,899,307.60 × 217,760,421.60
  4. Step 4: Simplify right side
    326,599,538.40x = 106,680,679,764,524,080
  5. Step 5: Solve for x
    x = 106,680,679,764,524,080/326,599,538.40
  6. Step 6: Final answer
    x = 326,640,632.40

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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.