Home / 100,448,410.86-138,608,071.22-56,400,251.63

Finding the Fourth Proportional to 100,448,410.86, 138,608,071.22 and 56,400,251.63

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Solution

The fourth proportional to 100,448,410.86, 138,608,071.22 and 56,400,251.63 is: 77,826,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,448,410.86 : 138,608,071.22 = 56,400,251.63 : x
  2. Step 2: Convert to fraction form
    100,448,410.86/138,608,071.22 = 56,400,251.63/x
  3. Step 3: Cross multiply
    100,448,410.86x = 138,608,071.22 × 56,400,251.63
  4. Step 4: Simplify right side
    100,448,410.86x = 7,817,530,094,204,921
  5. Step 5: Solve for x
    x = 7,817,530,094,204,921/100,448,410.86
  6. Step 6: Final answer
    x = 77,826,319.27

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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.