Home / 1,323,435,758.40-1,985,228,287.20-403,342,113.60

Finding the Fourth Proportional to 1,323,435,758.40, 1,985,228,287.20 and 403,342,113.60

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Solution

The fourth proportional to 1,323,435,758.40, 1,985,228,287.20 and 403,342,113.60 is: 605,035,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,435,758.40 : 1,985,228,287.20 = 403,342,113.60 : x
  2. Step 2: Convert to fraction form
    1,323,435,758.40/1,985,228,287.20 = 403,342,113.60/x
  3. Step 3: Cross multiply
    1,323,435,758.40x = 1,985,228,287.20 × 403,342,113.60
  4. Step 4: Simplify right side
    1,323,435,758.40x = 800,726,173,337,755,904
  5. Step 5: Solve for x
    x = 800,726,173,337,755,904/1,323,435,758.40
  6. Step 6: Final answer
    x = 605,035,921.28

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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.