Home / 38,647,677.60-53,333,197.20-21,243,650.40

Finding the Fourth Proportional to 38,647,677.60, 53,333,197.20 and 21,243,650.40

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Solution

The fourth proportional to 38,647,677.60, 53,333,197.20 and 21,243,650.40 is: 29,315,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,647,677.60 : 53,333,197.20 = 21,243,650.40 : x
  2. Step 2: Convert to fraction form
    38,647,677.60/53,333,197.20 = 21,243,650.40/x
  3. Step 3: Cross multiply
    38,647,677.60x = 53,333,197.20 × 21,243,650.40
  4. Step 4: Simplify right side
    38,647,677.60x = 1,132,991,796,031,058.75
  5. Step 5: Solve for x
    x = 1,132,991,796,031,058.75/38,647,677.60
  6. Step 6: Final answer
    x = 29,315,908.91

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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.