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Finding the Fourth Proportional to 139,582,852.67, 209,277,321.04 and 61,817,380.31

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Solution

The fourth proportional to 139,582,852.67, 209,277,321.04 and 61,817,380.31 is: 92,683,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,582,852.67 : 209,277,321.04 = 61,817,380.31 : x
  2. Step 2: Convert to fraction form
    139,582,852.67/209,277,321.04 = 61,817,380.31/x
  3. Step 3: Cross multiply
    139,582,852.67x = 209,277,321.04 × 61,817,380.31
  4. Step 4: Simplify right side
    139,582,852.67x = 12,936,975,745,588,110
  5. Step 5: Solve for x
    x = 12,936,975,745,588,110/139,582,852.67
  6. Step 6: Final answer
    x = 92,683,130.47

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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.