Home / 100,037,143.46-138,048,293.00-55,385,105.63

Finding the Fourth Proportional to 100,037,143.46, 138,048,293.00 and 55,385,105.63

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Solution

The fourth proportional to 100,037,143.46, 138,048,293.00 and 55,385,105.63 is: 76,429,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037,143.46 : 138,048,293.00 = 55,385,105.63 : x
  2. Step 2: Convert to fraction form
    100,037,143.46/138,048,293.00 = 55,385,105.63/x
  3. Step 3: Cross multiply
    100,037,143.46x = 138,048,293.00 × 55,385,105.63
  4. Step 4: Simplify right side
    100,037,143.46x = 7,645,819,290,072,329
  5. Step 5: Solve for x
    x = 7,645,819,290,072,329/100,037,143.46
  6. Step 6: Final answer
    x = 76,429,804.23

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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.