Home / 38,281,865.80-52,819,892.16-21,760,693.72

Finding the Fourth Proportional to 38,281,865.80, 52,819,892.16 and 21,760,693.72

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Solution

The fourth proportional to 38,281,865.80, 52,819,892.16 and 21,760,693.72 is: 30,024,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281,865.80 : 52,819,892.16 = 21,760,693.72 : x
  2. Step 2: Convert to fraction form
    38,281,865.80/52,819,892.16 = 21,760,693.72/x
  3. Step 3: Cross multiply
    38,281,865.80x = 52,819,892.16 × 21,760,693.72
  4. Step 4: Simplify right side
    38,281,865.80x = 1,149,397,495,617,189
  5. Step 5: Solve for x
    x = 1,149,397,495,617,189/38,281,865.80
  6. Step 6: Final answer
    x = 30,024,594.45

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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.