Home / 20,220,354.30-30,330,531.45-19,104,328.20

Finding the Fourth Proportional to 20,220,354.30, 30,330,531.45 and 19,104,328.20

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Solution

The fourth proportional to 20,220,354.30, 30,330,531.45 and 19,104,328.20 is: 28,656,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,354.30 : 30,330,531.45 = 19,104,328.20 : x
  2. Step 2: Convert to fraction form
    20,220,354.30/30,330,531.45 = 19,104,328.20/x
  3. Step 3: Cross multiply
    20,220,354.30x = 30,330,531.45 × 19,104,328.20
  4. Step 4: Simplify right side
    20,220,354.30x = 579,444,427,301,221.88
  5. Step 5: Solve for x
    x = 579,444,427,301,221.88/20,220,354.30
  6. Step 6: Final answer
    x = 28,656,492.30

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Double scale
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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.