Home / 18,778,728,703.92-25,915,228,795.80-10,320,398,778.48

Finding the Fourth Proportional to 18,778,728,703.92, 25,915,228,795.80 and 10,320,398,778.48

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Solution

The fourth proportional to 18,778,728,703.92, 25,915,228,795.80 and 10,320,398,778.48 is: 14,242,470,820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778,728,703.92 : 25,915,228,795.80 = 10,320,398,778.48 : x
  2. Step 2: Convert to fraction form
    18,778,728,703.92/25,915,228,795.80 = 10,320,398,778.48/x
  3. Step 3: Cross multiply
    18,778,728,703.92x = 25,915,228,795.80 × 10,320,398,778.48
  4. Step 4: Simplify right side
    18,778,728,703.92x = 267,455,495,608,204,034,048
  5. Step 5: Solve for x
    x = 267,455,495,608,204,034,048/18,778,728,703.92
  6. Step 6: Final answer
    x = 14,242,470,820.32

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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.