Home / 78,174,205.37-107,893,335.87-43,378,105.88

Finding the Fourth Proportional to 78,174,205.37, 107,893,335.87 and 43,378,105.88

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Solution

The fourth proportional to 78,174,205.37, 107,893,335.87 and 43,378,105.88 is: 59,868,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,174,205.37 : 107,893,335.87 = 43,378,105.88 : x
  2. Step 2: Convert to fraction form
    78,174,205.37/107,893,335.87 = 43,378,105.88/x
  3. Step 3: Cross multiply
    78,174,205.37x = 107,893,335.87 × 43,378,105.88
  4. Step 4: Simplify right side
    78,174,205.37x = 4,680,208,547,115,262
  5. Step 5: Solve for x
    x = 4,680,208,547,115,262/78,174,205.37
  6. Step 6: Final answer
    x = 59,868,962.21

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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.