Home / 78,804,944.80-118,207,417.21-48,571,856.80

Finding the Fourth Proportional to 78,804,944.80, 118,207,417.21 and 48,571,856.80

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Solution

The fourth proportional to 78,804,944.80, 118,207,417.21 and 48,571,856.80 is: 72,857,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,944.80 : 118,207,417.21 = 48,571,856.80 : x
  2. Step 2: Convert to fraction form
    78,804,944.80/118,207,417.21 = 48,571,856.80/x
  3. Step 3: Cross multiply
    78,804,944.80x = 118,207,417.21 × 48,571,856.80
  4. Step 4: Simplify right side
    78,804,944.80x = 5,741,553,741,421,975
  5. Step 5: Solve for x
    x = 5,741,553,741,421,975/78,804,944.80
  6. Step 6: Final answer
    x = 72,857,785.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.