Home / 100,037,161.18-138,048,317.40-55,385,123.32

Finding the Fourth Proportional to 100,037,161.18, 138,048,317.40 and 55,385,123.32

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Solution

The fourth proportional to 100,037,161.18, 138,048,317.40 and 55,385,123.32 is: 76,429,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037,161.18 : 138,048,317.40 = 55,385,123.32 : x
  2. Step 2: Convert to fraction form
    100,037,161.18/138,048,317.40 = 55,385,123.32/x
  3. Step 3: Cross multiply
    100,037,161.18x = 138,048,317.40 × 55,385,123.32
  4. Step 4: Simplify right side
    100,037,161.18x = 7,645,823,083,385,937
  5. Step 5: Solve for x
    x = 7,645,823,083,385,937/100,037,161.18
  6. Step 6: Final answer
    x = 76,429,828.61

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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.