Home / 108,871,272.20-163,306,908.30-81,997,416.20

Finding the Fourth Proportional to 108,871,272.20, 163,306,908.30 and 81,997,416.20

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Solution

The fourth proportional to 108,871,272.20, 163,306,908.30 and 81,997,416.20 is: 122,996,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871,272.20 : 163,306,908.30 = 81,997,416.20 : x
  2. Step 2: Convert to fraction form
    108,871,272.20/163,306,908.30 = 81,997,416.20/x
  3. Step 3: Cross multiply
    108,871,272.20x = 163,306,908.30 × 81,997,416.20
  4. Step 4: Simplify right side
    108,871,272.20x = 13,390,744,528,210,336
  5. Step 5: Solve for x
    x = 13,390,744,528,210,336/108,871,272.20
  6. Step 6: Final answer
    x = 122,996,124.30

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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.