Home / 30,427,208.55-45,565,102.40-21,286,506.38

Finding the Fourth Proportional to 30,427,208.55, 45,565,102.40 and 21,286,506.38

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Solution

The fourth proportional to 30,427,208.55, 45,565,102.40 and 21,286,506.38 is: 31,876,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427,208.55 : 45,565,102.40 = 21,286,506.38 : x
  2. Step 2: Convert to fraction form
    30,427,208.55/45,565,102.40 = 21,286,506.38/x
  3. Step 3: Cross multiply
    30,427,208.55x = 45,565,102.40 × 21,286,506.38
  4. Step 4: Simplify right side
    30,427,208.55x = 969,921,842,608,695.38
  5. Step 5: Solve for x
    x = 969,921,842,608,695.38/30,427,208.55
  6. Step 6: Final answer
    x = 31,876,793.46

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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.