Home / 326,430,404.40-489,645,606.60-307,723,681.20

Finding the Fourth Proportional to 326,430,404.40, 489,645,606.60 and 307,723,681.20

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Solution

The fourth proportional to 326,430,404.40, 489,645,606.60 and 307,723,681.20 is: 461,585,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,430,404.40 : 489,645,606.60 = 307,723,681.20 : x
  2. Step 2: Convert to fraction form
    326,430,404.40/489,645,606.60 = 307,723,681.20/x
  3. Step 3: Cross multiply
    326,430,404.40x = 489,645,606.60 × 307,723,681.20
  4. Step 4: Simplify right side
    326,430,404.40x = 150,675,548,546,359,008
  5. Step 5: Solve for x
    x = 150,675,548,546,359,008/326,430,404.40
  6. Step 6: Final answer
    x = 461,585,521.80

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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.