Home / 129,416,799.04-178,599,589.28-76,538,834.64

Finding the Fourth Proportional to 129,416,799.04, 178,599,589.28 and 76,538,834.64

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Solution

The fourth proportional to 129,416,799.04, 178,599,589.28 and 76,538,834.64 is: 105,626,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416,799.04 : 178,599,589.28 = 76,538,834.64 : x
  2. Step 2: Convert to fraction form
    129,416,799.04/178,599,589.28 = 76,538,834.64/x
  3. Step 3: Cross multiply
    129,416,799.04x = 178,599,589.28 × 76,538,834.64
  4. Step 4: Simplify right side
    129,416,799.04x = 13,669,804,430,673,836
  5. Step 5: Solve for x
    x = 13,669,804,430,673,836/129,416,799.04
  6. Step 6: Final answer
    x = 105,626,197.93

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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.