Home / 129,674,238.56-178,949,914.22-70,135,601.12

Finding the Fourth Proportional to 129,674,238.56, 178,949,914.22 and 70,135,601.12

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Solution

The fourth proportional to 129,674,238.56, 178,949,914.22 and 70,135,601.12 is: 96,786,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,674,238.56 : 178,949,914.22 = 70,135,601.12 : x
  2. Step 2: Convert to fraction form
    129,674,238.56/178,949,914.22 = 70,135,601.12/x
  3. Step 3: Cross multiply
    129,674,238.56x = 178,949,914.22 × 70,135,601.12
  4. Step 4: Simplify right side
    129,674,238.56x = 12,550,759,803,841,460
  5. Step 5: Solve for x
    x = 12,550,759,803,841,460/129,674,238.56
  6. Step 6: Final answer
    x = 96,786,840.19

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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.