Home / 12,871,513.14-17,748,132.04-8,219,180.94

Finding the Fourth Proportional to 12,871,513.14, 17,748,132.04 and 8,219,180.94

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Solution

The fourth proportional to 12,871,513.14, 17,748,132.04 and 8,219,180.94 is: 11,333,174.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871,513.14 : 17,748,132.04 = 8,219,180.94 : x
  2. Step 2: Convert to fraction form
    12,871,513.14/17,748,132.04 = 8,219,180.94/x
  3. Step 3: Cross multiply
    12,871,513.14x = 17,748,132.04 × 8,219,180.94
  4. Step 4: Simplify right side
    12,871,513.14x = 145,875,108,583,771.31
  5. Step 5: Solve for x
    x = 145,875,108,583,771.31/12,871,513.14
  6. Step 6: Final answer
    x = 11,333,174.82

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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.