Home / 255,092,133,659.40-382,638,200,489.10-78,405,432,424.20

Finding the Fourth Proportional to 255,092,133,659.40, 382,638,200,489.10 and 78,405,432,424.20

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Solution

The fourth proportional to 255,092,133,659.40, 382,638,200,489.10 and 78,405,432,424.20 is: 117,608,148,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,092,133,659.40 : 382,638,200,489.10 = 78,405,432,424.20 : x
  2. Step 2: Convert to fraction form
    255,092,133,659.40/382,638,200,489.10 = 78,405,432,424.20/x
  3. Step 3: Cross multiply
    255,092,133,659.40x = 382,638,200,489.10 × 78,405,432,424.20
  4. Step 4: Simplify right side
    255,092,133,659.40x = 30,000,913,571,365,620,023,296
  5. Step 5: Solve for x
    x = 30,000,913,571,365,620,023,296/255,092,133,659.40
  6. Step 6: Final answer
    x = 117,608,148,636.30

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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.