Home / 129,674,242.02-178,949,918.95-70,135,604.61

Finding the Fourth Proportional to 129,674,242.02, 178,949,918.95 and 70,135,604.61

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Solution

The fourth proportional to 129,674,242.02, 178,949,918.95 and 70,135,604.61 is: 96,786,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,674,242.02 : 178,949,918.95 = 70,135,604.61 : x
  2. Step 2: Convert to fraction form
    129,674,242.02/178,949,918.95 = 70,135,604.61/x
  3. Step 3: Cross multiply
    129,674,242.02x = 178,949,918.95 × 70,135,604.61
  4. Step 4: Simplify right side
    129,674,242.02x = 12,550,760,760,468,746
  5. Step 5: Solve for x
    x = 12,550,760,760,468,746/129,674,242.02
  6. Step 6: Final answer
    x = 96,786,844.98

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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.