Home / 28,296,868,151.70-42,445,302,227.55-21,766,521,143.70

Finding the Fourth Proportional to 28,296,868,151.70, 42,445,302,227.55 and 21,766,521,143.70

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Solution

The fourth proportional to 28,296,868,151.70, 42,445,302,227.55 and 21,766,521,143.70 is: 32,649,781,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296,868,151.70 : 42,445,302,227.55 = 21,766,521,143.70 : x
  2. Step 2: Convert to fraction form
    28,296,868,151.70/42,445,302,227.55 = 21,766,521,143.70/x
  3. Step 3: Cross multiply
    28,296,868,151.70x = 42,445,302,227.55 × 21,766,521,143.70
  4. Step 4: Simplify right side
    28,296,868,151.70x = 923,886,568,386,703,917,056
  5. Step 5: Solve for x
    x = 923,886,568,386,703,917,056/28,296,868,151.70
  6. Step 6: Final answer
    x = 32,649,781,715.55

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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.