Home / 12,561,938,109.23-18,842,907,163.85-12,474,768,499.20

Finding the Fourth Proportional to 12,561,938,109.23, 18,842,907,163.85 and 12,474,768,499.20

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Solution

The fourth proportional to 12,561,938,109.23, 18,842,907,163.85 and 12,474,768,499.20 is: 18,712,152,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561,938,109.23 : 18,842,907,163.85 = 12,474,768,499.20 : x
  2. Step 2: Convert to fraction form
    12,561,938,109.23/18,842,907,163.85 = 12,474,768,499.20/x
  3. Step 3: Cross multiply
    12,561,938,109.23x = 18,842,907,163.85 × 12,474,768,499.20
  4. Step 4: Simplify right side
    12,561,938,109.23x = 235,060,904,720,883,646,464
  5. Step 5: Solve for x
    x = 235,060,904,720,883,646,464/12,561,938,109.23
  6. Step 6: Final answer
    x = 18,712,152,748.81

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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.