Home / 21,011,884.72-31,518,793-6,437,760.46

Finding the Fourth Proportional to 21,011,884.72, 31,518,793 and 6,437,760.46

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Solution

The fourth proportional to 21,011,884.72, 31,518,793 and 6,437,760.46 is: 9,656,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,884.72 : 31,518,793 = 6,437,760.46 : x
  2. Step 2: Convert to fraction form
    21,011,884.72/31,518,793 = 6,437,760.46/x
  3. Step 3: Cross multiply
    21,011,884.72x = 31,518,793 × 6,437,760.46
  4. Step 4: Simplify right side
    21,011,884.72x = 202,910,439,164,730.81
  5. Step 5: Solve for x
    x = 202,910,439,164,730.81/21,011,884.72
  6. Step 6: Final answer
    x = 9,656,936.63

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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.