Home / 31,431,200,447.70-47,146,800,671.55-21,513,235,929.30

Finding the Fourth Proportional to 31,431,200,447.70, 47,146,800,671.55 and 21,513,235,929.30

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Solution

The fourth proportional to 31,431,200,447.70, 47,146,800,671.55 and 21,513,235,929.30 is: 32,269,853,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431,200,447.70 : 47,146,800,671.55 = 21,513,235,929.30 : x
  2. Step 2: Convert to fraction form
    31,431,200,447.70/47,146,800,671.55 = 21,513,235,929.30/x
  3. Step 3: Cross multiply
    31,431,200,447.70x = 47,146,800,671.55 × 21,513,235,929.30
  4. Step 4: Simplify right side
    31,431,200,447.70x = 1,014,280,246,158,734,917,632
  5. Step 5: Solve for x
    x = 1,014,280,246,158,734,917,632/31,431,200,447.70
  6. Step 6: Final answer
    x = 32,269,853,893.95

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Double scale
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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.