Home / 20,851,643.60-31,277,465.40-7,389,832.40

Finding the Fourth Proportional to 20,851,643.60, 31,277,465.40 and 7,389,832.40

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Solution

The fourth proportional to 20,851,643.60, 31,277,465.40 and 7,389,832.40 is: 11,084,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851,643.60 : 31,277,465.40 = 7,389,832.40 : x
  2. Step 2: Convert to fraction form
    20,851,643.60/31,277,465.40 = 7,389,832.40/x
  3. Step 3: Cross multiply
    20,851,643.60x = 31,277,465.40 × 7,389,832.40
  4. Step 4: Simplify right side
    20,851,643.60x = 231,135,227,202,798.97
  5. Step 5: Solve for x
    x = 231,135,227,202,798.97/20,851,643.60
  6. Step 6: Final answer
    x = 11,084,748.60

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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.