Home / 968,147,998.40-1,452,033,040.80-321,915,742.40

Finding the Fourth Proportional to 968,147,998.40, 1,452,033,040.80 and 321,915,742.40

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Solution

The fourth proportional to 968,147,998.40, 1,452,033,040.80 and 321,915,742.40 is: 482,810,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,147,998.40 : 1,452,033,040.80 = 321,915,742.40 : x
  2. Step 2: Convert to fraction form
    968,147,998.40/1,452,033,040.80 = 321,915,742.40/x
  3. Step 3: Cross multiply
    968,147,998.40x = 1,452,033,040.80 × 321,915,742.40
  4. Step 4: Simplify right side
    968,147,998.40x = 467,432,294,318,461,440
  5. Step 5: Solve for x
    x = 467,432,294,318,461,440/968,147,998.40
  6. Step 6: Final answer
    x = 482,810,784.19

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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.