Home / 108,871,409.70-163,307,114.55-81,997,553.70

Finding the Fourth Proportional to 108,871,409.70, 163,307,114.55 and 81,997,553.70

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Solution

The fourth proportional to 108,871,409.70, 163,307,114.55 and 81,997,553.70 is: 122,996,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871,409.70 : 163,307,114.55 = 81,997,553.70 : x
  2. Step 2: Convert to fraction form
    108,871,409.70/163,307,114.55 = 81,997,553.70/x
  3. Step 3: Cross multiply
    108,871,409.70x = 163,307,114.55 × 81,997,553.70
  4. Step 4: Simplify right side
    108,871,409.70x = 13,390,783,894,905,678
  5. Step 5: Solve for x
    x = 13,390,783,894,905,678/108,871,409.70
  6. Step 6: Final answer
    x = 122,996,330.55

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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.