Home / 129,122,537.68-178,187,651.40-70,383,914.02

Finding the Fourth Proportional to 129,122,537.68, 178,187,651.40 and 70,383,914.02

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Solution

The fourth proportional to 129,122,537.68, 178,187,651.40 and 70,383,914.02 is: 97,129,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,122,537.68 : 178,187,651.40 = 70,383,914.02 : x
  2. Step 2: Convert to fraction form
    129,122,537.68/178,187,651.40 = 70,383,914.02/x
  3. Step 3: Cross multiply
    129,122,537.68x = 178,187,651.40 × 70,383,914.02
  4. Step 4: Simplify right side
    129,122,537.68x = 12,541,544,335,563,332
  5. Step 5: Solve for x
    x = 12,541,544,335,563,332/129,122,537.68
  6. Step 6: Final answer
    x = 97,129,010.64

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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.