Home / 20,736,021.40-31,104,032.10-18,552,520.60

Finding the Fourth Proportional to 20,736,021.40, 31,104,032.10 and 18,552,520.60

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Solution

The fourth proportional to 20,736,021.40, 31,104,032.10 and 18,552,520.60 is: 27,828,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,021.40 : 31,104,032.10 = 18,552,520.60 : x
  2. Step 2: Convert to fraction form
    20,736,021.40/31,104,032.10 = 18,552,520.60/x
  3. Step 3: Cross multiply
    20,736,021.40x = 31,104,032.10 × 18,552,520.60
  4. Step 4: Simplify right side
    20,736,021.40x = 577,058,196,278,311.38
  5. Step 5: Solve for x
    x = 577,058,196,278,311.38/20,736,021.40
  6. Step 6: Final answer
    x = 27,828,780.90

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1.5x scale

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.