Home / 78,187,671.83-107,899,003.47-43,380,279.23

Finding the Fourth Proportional to 78,187,671.83, 107,899,003.47 and 43,380,279.23

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Solution

The fourth proportional to 78,187,671.83, 107,899,003.47 and 43,380,279.23 is: 59,864,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,187,671.83 : 107,899,003.47 = 43,380,279.23 : x
  2. Step 2: Convert to fraction form
    78,187,671.83/107,899,003.47 = 43,380,279.23/x
  3. Step 3: Cross multiply
    78,187,671.83x = 107,899,003.47 × 43,380,279.23
  4. Step 4: Simplify right side
    78,187,671.83x = 4,680,688,898,627,844
  5. Step 5: Solve for x
    x = 4,680,688,898,627,844/78,187,671.83
  6. Step 6: Final answer
    x = 59,864,794.40

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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.