Home / 326,422,688.40-489,634,032.60-84,085,592.40

Finding the Fourth Proportional to 326,422,688.40, 489,634,032.60 and 84,085,592.40

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Solution

The fourth proportional to 326,422,688.40, 489,634,032.60 and 84,085,592.40 is: 126,128,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,422,688.40 : 489,634,032.60 = 84,085,592.40 : x
  2. Step 2: Convert to fraction form
    326,422,688.40/489,634,032.60 = 84,085,592.40/x
  3. Step 3: Cross multiply
    326,422,688.40x = 489,634,032.60 × 84,085,592.40
  4. Step 4: Simplify right side
    326,422,688.40x = 41,171,167,690,371,920
  5. Step 5: Solve for x
    x = 41,171,167,690,371,920/326,422,688.40
  6. Step 6: Final answer
    x = 126,128,388.60

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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.