Home / 100,037,165.12-138,048,322.86-55,385,127.26

Finding the Fourth Proportional to 100,037,165.12, 138,048,322.86 and 55,385,127.26

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Solution

The fourth proportional to 100,037,165.12, 138,048,322.86 and 55,385,127.26 is: 76,429,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037,165.12 : 138,048,322.86 = 55,385,127.26 : x
  2. Step 2: Convert to fraction form
    100,037,165.12/138,048,322.86 = 55,385,127.26/x
  3. Step 3: Cross multiply
    100,037,165.12x = 138,048,322.86 × 55,385,127.26
  4. Step 4: Simplify right side
    100,037,165.12x = 7,645,823,929,630,668
  5. Step 5: Solve for x
    x = 7,645,823,929,630,668/100,037,165.12
  6. Step 6: Final answer
    x = 76,429,834.06

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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.