Home / 554,871,974.36-831,422,609.87-406,632,508.61

Finding the Fourth Proportional to 554,871,974.36, 831,422,609.87 and 406,632,508.61

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Solution

The fourth proportional to 554,871,974.36, 831,422,609.87 and 406,632,508.61 is: 609,299,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,871,974.36 : 831,422,609.87 = 406,632,508.61 : x
  2. Step 2: Convert to fraction form
    554,871,974.36/831,422,609.87 = 406,632,508.61/x
  3. Step 3: Cross multiply
    554,871,974.36x = 831,422,609.87 × 406,632,508.61
  4. Step 4: Simplify right side
    554,871,974.36x = 338,083,461,560,321,216
  5. Step 5: Solve for x
    x = 338,083,461,560,321,216/554,871,974.36
  6. Step 6: Final answer
    x = 609,299,941.58

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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.