Home / 129,183,465.60-178,273,742.40-76,998,729.60

Finding the Fourth Proportional to 129,183,465.60, 178,273,742.40 and 76,998,729.60

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Solution

The fourth proportional to 129,183,465.60, 178,273,742.40 and 76,998,729.60 is: 106,258,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,183,465.60 : 178,273,742.40 = 76,998,729.60 : x
  2. Step 2: Convert to fraction form
    129,183,465.60/178,273,742.40 = 76,998,729.60/x
  3. Step 3: Cross multiply
    129,183,465.60x = 178,273,742.40 × 76,998,729.60
  4. Step 4: Simplify right side
    129,183,465.60x = 13,726,851,685,837,654
  5. Step 5: Solve for x
    x = 13,726,851,685,837,654/129,183,465.60
  6. Step 6: Final answer
    x = 106,258,580.56

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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.