Home / 108,519,189.40-162,778,784.10-100,205,090.20

Finding the Fourth Proportional to 108,519,189.40, 162,778,784.10 and 100,205,090.20

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Solution

The fourth proportional to 108,519,189.40, 162,778,784.10 and 100,205,090.20 is: 150,307,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,519,189.40 : 162,778,784.10 = 100,205,090.20 : x
  2. Step 2: Convert to fraction form
    108,519,189.40/162,778,784.10 = 100,205,090.20/x
  3. Step 3: Cross multiply
    108,519,189.40x = 162,778,784.10 × 100,205,090.20
  4. Step 4: Simplify right side
    108,519,189.40x = 16,311,262,743,386,826
  5. Step 5: Solve for x
    x = 16,311,262,743,386,826/108,519,189.40
  6. Step 6: Final answer
    x = 150,307,635.30

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Similar ratio
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1.5x scale

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.