Home / 108,871,412.70-163,307,119.05-81,997,556.70

Finding the Fourth Proportional to 108,871,412.70, 163,307,119.05 and 81,997,556.70

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Solution

The fourth proportional to 108,871,412.70, 163,307,119.05 and 81,997,556.70 is: 122,996,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871,412.70 : 163,307,119.05 = 81,997,556.70 : x
  2. Step 2: Convert to fraction form
    108,871,412.70/163,307,119.05 = 81,997,556.70/x
  3. Step 3: Cross multiply
    108,871,412.70x = 163,307,119.05 × 81,997,556.70
  4. Step 4: Simplify right side
    108,871,412.70x = 13,390,784,753,816,026
  5. Step 5: Solve for x
    x = 13,390,784,753,816,026/108,871,412.70
  6. Step 6: Final answer
    x = 122,996,335.05

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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.