Home / 78,724,050.73-108,660,798.18-45,694,940.80

Finding the Fourth Proportional to 78,724,050.73, 108,660,798.18 and 45,694,940.80

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Solution

The fourth proportional to 78,724,050.73, 108,660,798.18 and 45,694,940.80 is: 63,071,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724,050.73 : 108,660,798.18 = 45,694,940.80 : x
  2. Step 2: Convert to fraction form
    78,724,050.73/108,660,798.18 = 45,694,940.80/x
  3. Step 3: Cross multiply
    78,724,050.73x = 108,660,798.18 × 45,694,940.80
  4. Step 4: Simplify right side
    78,724,050.73x = 4,965,248,740,115,848
  5. Step 5: Solve for x
    x = 4,965,248,740,115,848/78,724,050.73
  6. Step 6: Final answer
    x = 63,071,560.65

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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.