Home / 21,054,330.60-31,581,495.90-12,096,378.60

Finding the Fourth Proportional to 21,054,330.60, 31,581,495.90 and 12,096,378.60

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Solution

The fourth proportional to 21,054,330.60, 31,581,495.90 and 12,096,378.60 is: 18,144,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,330.60 : 31,581,495.90 = 12,096,378.60 : x
  2. Step 2: Convert to fraction form
    21,054,330.60/31,581,495.90 = 12,096,378.60/x
  3. Step 3: Cross multiply
    21,054,330.60x = 31,581,495.90 × 12,096,378.60
  4. Step 4: Simplify right side
    21,054,330.60x = 382,021,731,160,747.69
  5. Step 5: Solve for x
    x = 382,021,731,160,747.69/21,054,330.60
  6. Step 6: Final answer
    x = 18,144,567.90

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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.