Home / 20,983,885.98-31,480,071.93-8,853,379.38

Finding the Fourth Proportional to 20,983,885.98, 31,480,071.93 and 8,853,379.38

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Solution

The fourth proportional to 20,983,885.98, 31,480,071.93 and 8,853,379.38 is: 13,281,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983,885.98 : 31,480,071.93 = 8,853,379.38 : x
  2. Step 2: Convert to fraction form
    20,983,885.98/31,480,071.93 = 8,853,379.38/x
  3. Step 3: Cross multiply
    20,983,885.98x = 31,480,071.93 × 8,853,379.38
  4. Step 4: Simplify right side
    20,983,885.98x = 278,705,019,705,978.81
  5. Step 5: Solve for x
    x = 278,705,019,705,978.81/20,983,885.98
  6. Step 6: Final answer
    x = 13,281,859.23

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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.