Home / 78,312,944.92-108,081,828.54-47,373,335.32

Finding the Fourth Proportional to 78,312,944.92, 108,081,828.54 and 47,373,335.32

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Solution

The fourth proportional to 78,312,944.92, 108,081,828.54 and 47,373,335.32 is: 65,381,230.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,944.92 : 108,081,828.54 = 47,373,335.32 : x
  2. Step 2: Convert to fraction form
    78,312,944.92/108,081,828.54 = 47,373,335.32/x
  3. Step 3: Cross multiply
    78,312,944.92x = 108,081,828.54 × 47,373,335.32
  4. Step 4: Simplify right side
    78,312,944.92x = 5,120,196,705,424,166
  5. Step 5: Solve for x
    x = 5,120,196,705,424,166/78,312,944.92
  6. Step 6: Final answer
    x = 65,381,230.53

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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.