Home / 20,757,705.98-31,139,530.50-6,381,980.81

Finding the Fourth Proportional to 20,757,705.98, 31,139,530.50 and 6,381,980.81

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Solution

The fourth proportional to 20,757,705.98, 31,139,530.50 and 6,381,980.81 is: 9,573,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,705.98 : 31,139,530.50 = 6,381,980.81 : x
  2. Step 2: Convert to fraction form
    20,757,705.98/31,139,530.50 = 6,381,980.81/x
  3. Step 3: Cross multiply
    20,757,705.98x = 31,139,530.50 × 6,381,980.81
  4. Step 4: Simplify right side
    20,757,705.98x = 198,731,886,083,409.69
  5. Step 5: Solve for x
    x = 198,731,886,083,409.69/20,757,705.98
  6. Step 6: Final answer
    x = 9,573,884.82

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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.