Home / 109,212,672.90-163,819,009.35-28,433,640.90

Finding the Fourth Proportional to 109,212,672.90, 163,819,009.35 and 28,433,640.90

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Solution

The fourth proportional to 109,212,672.90, 163,819,009.35 and 28,433,640.90 is: 42,650,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,212,672.90 : 163,819,009.35 = 28,433,640.90 : x
  2. Step 2: Convert to fraction form
    109,212,672.90/163,819,009.35 = 28,433,640.90/x
  3. Step 3: Cross multiply
    109,212,672.90x = 163,819,009.35 × 28,433,640.90
  4. Step 4: Simplify right side
    109,212,672.90x = 4,657,970,884,451,642
  5. Step 5: Solve for x
    x = 4,657,970,884,451,642/109,212,672.90
  6. Step 6: Final answer
    x = 42,650,461.35

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Double scale
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Similar ratio
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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.