Home / 100,037,633.92-138,048,968.86-55,385,595.38

Finding the Fourth Proportional to 100,037,633.92, 138,048,968.86 and 55,385,595.38

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Solution

The fourth proportional to 100,037,633.92, 138,048,968.86 and 55,385,595.38 is: 76,430,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037,633.92 : 138,048,968.86 = 55,385,595.38 : x
  2. Step 2: Convert to fraction form
    100,037,633.92/138,048,968.86 = 55,385,595.38/x
  3. Step 3: Cross multiply
    100,037,633.92x = 138,048,968.86 × 55,385,595.38
  4. Step 4: Simplify right side
    100,037,633.92x = 7,645,924,332,112,838
  5. Step 5: Solve for x
    x = 7,645,924,332,112,838/100,037,633.92
  6. Step 6: Final answer
    x = 76,430,479.54

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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.