Home / 20,671,869.37-31,012,475.51-6,838,795.66

Finding the Fourth Proportional to 20,671,869.37, 31,012,475.51 and 6,838,795.66

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Solution

The fourth proportional to 20,671,869.37, 31,012,475.51 and 6,838,795.66 is: 10,259,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,869.37 : 31,012,475.51 = 6,838,795.66 : x
  2. Step 2: Convert to fraction form
    20,671,869.37/31,012,475.51 = 6,838,795.66/x
  3. Step 3: Cross multiply
    20,671,869.37x = 31,012,475.51 × 6,838,795.66
  4. Step 4: Simplify right side
    20,671,869.37x = 212,087,982,923,644.31
  5. Step 5: Solve for x
    x = 212,087,982,923,644.31/20,671,869.37
  6. Step 6: Final answer
    x = 10,259,738.93

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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.