Home / 20,851,643.10-31,277,464.65-7,389,831.90

Finding the Fourth Proportional to 20,851,643.10, 31,277,464.65 and 7,389,831.90

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Solution

The fourth proportional to 20,851,643.10, 31,277,464.65 and 7,389,831.90 is: 11,084,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851,643.10 : 31,277,464.65 = 7,389,831.90 : x
  2. Step 2: Convert to fraction form
    20,851,643.10/31,277,464.65 = 7,389,831.90/x
  3. Step 3: Cross multiply
    20,851,643.10x = 31,277,464.65 × 7,389,831.90
  4. Step 4: Simplify right side
    20,851,643.10x = 231,135,206,021,692.34
  5. Step 5: Solve for x
    x = 231,135,206,021,692.34/20,851,643.10
  6. Step 6: Final answer
    x = 11,084,747.85

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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.