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Finding the Fourth Proportional to 65,674,995.30, 98,521,824.15 and 20,232,051.30

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Solution

The fourth proportional to 65,674,995.30, 98,521,824.15 and 20,232,051.30 is: 30,350,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,674,995.30 : 98,521,824.15 = 20,232,051.30 : x
  2. Step 2: Convert to fraction form
    65,674,995.30/98,521,824.15 = 20,232,051.30/x
  3. Step 3: Cross multiply
    65,674,995.30x = 98,521,824.15 × 20,232,051.30
  4. Step 4: Simplify right side
    65,674,995.30x = 1,993,298,600,372,379
  5. Step 5: Solve for x
    x = 1,993,298,600,372,379/65,674,995.30
  6. Step 6: Final answer
    x = 30,350,951.55

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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.