Home / 108,807,980.70-163,211,971.05-84,149,118.30

Finding the Fourth Proportional to 108,807,980.70, 163,211,971.05 and 84,149,118.30

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Solution

The fourth proportional to 108,807,980.70, 163,211,971.05 and 84,149,118.30 is: 126,223,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,807,980.70 : 163,211,971.05 = 84,149,118.30 : x
  2. Step 2: Convert to fraction form
    108,807,980.70/163,211,971.05 = 84,149,118.30/x
  3. Step 3: Cross multiply
    108,807,980.70x = 163,211,971.05 × 84,149,118.30
  4. Step 4: Simplify right side
    108,807,980.70x = 13,734,143,459,862,626
  5. Step 5: Solve for x
    x = 13,734,143,459,862,626/108,807,980.70
  6. Step 6: Final answer
    x = 126,223,677.45

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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.