Home / 187,216,647.60-280,824,971.40-85,179,975.60

Finding the Fourth Proportional to 187,216,647.60, 280,824,971.40 and 85,179,975.60

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Solution

The fourth proportional to 187,216,647.60, 280,824,971.40 and 85,179,975.60 is: 127,769,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,216,647.60 : 280,824,971.40 = 85,179,975.60 : x
  2. Step 2: Convert to fraction form
    187,216,647.60/280,824,971.40 = 85,179,975.60/x
  3. Step 3: Cross multiply
    187,216,647.60x = 280,824,971.40 × 85,179,975.60
  4. Step 4: Simplify right side
    187,216,647.60x = 23,920,664,211,722,696
  5. Step 5: Solve for x
    x = 23,920,664,211,722,696/187,216,647.60
  6. Step 6: Final answer
    x = 127,769,963.40

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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.