Home / 15,316,820.80-21,137,212.80-8,441,302.96

Finding the Fourth Proportional to 15,316,820.80, 21,137,212.80 and 8,441,302.96

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Solution

The fourth proportional to 15,316,820.80, 21,137,212.80 and 8,441,302.96 is: 11,648,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,820.80 : 21,137,212.80 = 8,441,302.96 : x
  2. Step 2: Convert to fraction form
    15,316,820.80/21,137,212.80 = 8,441,302.96/x
  3. Step 3: Cross multiply
    15,316,820.80x = 21,137,212.80 × 8,441,302.96
  4. Step 4: Simplify right side
    15,316,820.80x = 178,425,616,974,789.91
  5. Step 5: Solve for x
    x = 178,425,616,974,789.91/15,316,820.80
  6. Step 6: Final answer
    x = 11,648,998.14

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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.