Home / 70,110,015.20-105,165,022.80-39,876,927.20

Finding the Fourth Proportional to 70,110,015.20, 105,165,022.80 and 39,876,927.20

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Solution

The fourth proportional to 70,110,015.20, 105,165,022.80 and 39,876,927.20 is: 59,815,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,110,015.20 : 105,165,022.80 = 39,876,927.20 : x
  2. Step 2: Convert to fraction form
    70,110,015.20/105,165,022.80 = 39,876,927.20/x
  3. Step 3: Cross multiply
    70,110,015.20x = 105,165,022.80 × 39,876,927.20
  4. Step 4: Simplify right side
    70,110,015.20x = 4,193,657,958,181,940.50
  5. Step 5: Solve for x
    x = 4,193,657,958,181,940.50/70,110,015.20
  6. Step 6: Final answer
    x = 59,815,390.80

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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.