Home / 126,015,376.40-188,739,629.40-74,997,040.40

Finding the Fourth Proportional to 126,015,376.40, 188,739,629.40 and 74,997,040.40

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Solution

The fourth proportional to 126,015,376.40, 188,739,629.40 and 74,997,040.40 is: 112,326,876.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,015,376.40 : 188,739,629.40 = 74,997,040.40 : x
  2. Step 2: Convert to fraction form
    126,015,376.40/188,739,629.40 = 74,997,040.40/x
  3. Step 3: Cross multiply
    126,015,376.40x = 188,739,629.40 × 74,997,040.40
  4. Step 4: Simplify right side
    126,015,376.40x = 14,154,913,611,192,830
  5. Step 5: Solve for x
    x = 14,154,913,611,192,830/126,015,376.40
  6. Step 6: Final answer
    x = 112,326,876.41

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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.