Home / 19,288,220.40-28,965,508.20-13,648,028.40

Finding the Fourth Proportional to 19,288,220.40, 28,965,508.20 and 13,648,028.40

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Solution

The fourth proportional to 19,288,220.40, 28,965,508.20 and 13,648,028.40 is: 20,495,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288,220.40 : 28,965,508.20 = 13,648,028.40 : x
  2. Step 2: Convert to fraction form
    19,288,220.40/28,965,508.20 = 13,648,028.40/x
  3. Step 3: Cross multiply
    19,288,220.40x = 28,965,508.20 × 13,648,028.40
  4. Step 4: Simplify right side
    19,288,220.40x = 395,322,078,534,032.88
  5. Step 5: Solve for x
    x = 395,322,078,534,032.88/19,288,220.40
  6. Step 6: Final answer
    x = 20,495,518.53

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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.