Home / 20,799,059.51-28,709,916.31-14,294,221.67

Finding the Fourth Proportional to 20,799,059.51, 28,709,916.31 and 14,294,221.67

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Solution

The fourth proportional to 20,799,059.51, 28,709,916.31 and 14,294,221.67 is: 19,730,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799,059.51 : 28,709,916.31 = 14,294,221.67 : x
  2. Step 2: Convert to fraction form
    20,799,059.51/28,709,916.31 = 14,294,221.67/x
  3. Step 3: Cross multiply
    20,799,059.51x = 28,709,916.31 × 14,294,221.67
  4. Step 4: Simplify right side
    20,799,059.51x = 410,385,907,951,931
  5. Step 5: Solve for x
    x = 410,385,907,951,931/20,799,059.51
  6. Step 6: Final answer
    x = 19,730,983.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.