Home / 28,006,415,561.21-38,648,969,121.12-15,146,055,241.66

Finding the Fourth Proportional to 28,006,415,561.21, 38,648,969,121.12 and 15,146,055,241.66

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Solution

The fourth proportional to 28,006,415,561.21, 38,648,969,121.12 and 15,146,055,241.66 is: 20,901,618,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,415,561.21 : 38,648,969,121.12 = 15,146,055,241.66 : x
  2. Step 2: Convert to fraction form
    28,006,415,561.21/38,648,969,121.12 = 15,146,055,241.66/x
  3. Step 3: Cross multiply
    28,006,415,561.21x = 38,648,969,121.12 × 15,146,055,241.66
  4. Step 4: Simplify right side
    28,006,415,561.21x = 585,379,421,341,441,196,032
  5. Step 5: Solve for x
    x = 585,379,421,341,441,196,032/28,006,415,561.21
  6. Step 6: Final answer
    x = 20,901,618,775.96

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.