Home / 21,178,537.05-31,781,241.87-9,048,091.86

Finding the Fourth Proportional to 21,178,537.05, 31,781,241.87 and 9,048,091.86

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Solution

The fourth proportional to 21,178,537.05, 31,781,241.87 and 9,048,091.86 is: 13,577,878.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,537.05 : 31,781,241.87 = 9,048,091.86 : x
  2. Step 2: Convert to fraction form
    21,178,537.05/31,781,241.87 = 9,048,091.86/x
  3. Step 3: Cross multiply
    21,178,537.05x = 31,781,241.87 × 9,048,091.86
  4. Step 4: Simplify right side
    21,178,537.05x = 287,559,595,864,638.19
  5. Step 5: Solve for x
    x = 287,559,595,864,638.19/21,178,537.05
  6. Step 6: Final answer
    x = 13,577,878.17

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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.