Home / 30,430,650.16-41,998,603.36-18,831,949.12

Finding the Fourth Proportional to 30,430,650.16, 41,998,603.36 and 18,831,949.12

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Solution

The fourth proportional to 30,430,650.16, 41,998,603.36 and 18,831,949.12 is: 25,990,754.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430,650.16 : 41,998,603.36 = 18,831,949.12 : x
  2. Step 2: Convert to fraction form
    30,430,650.16/41,998,603.36 = 18,831,949.12/x
  3. Step 3: Cross multiply
    30,430,650.16x = 41,998,603.36 × 18,831,949.12
  4. Step 4: Simplify right side
    30,430,650.16x = 790,915,561,586,581.12
  5. Step 5: Solve for x
    x = 790,915,561,586,581.12/30,430,650.16
  6. Step 6: Final answer
    x = 25,990,754.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.