Home / 546,021,008.20-819,031,512.30-520,511,840.20

Finding the Fourth Proportional to 546,021,008.20, 819,031,512.30 and 520,511,840.20

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Solution

The fourth proportional to 546,021,008.20, 819,031,512.30 and 520,511,840.20 is: 780,767,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,021,008.20 : 819,031,512.30 = 520,511,840.20 : x
  2. Step 2: Convert to fraction form
    546,021,008.20/819,031,512.30 = 520,511,840.20/x
  3. Step 3: Cross multiply
    546,021,008.20x = 819,031,512.30 × 520,511,840.20
  4. Step 4: Simplify right side
    546,021,008.20x = 426,315,599,649,061,888
  5. Step 5: Solve for x
    x = 426,315,599,649,061,888/546,021,008.20
  6. Step 6: Final answer
    x = 780,767,760.30

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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.