Home / 66,362,521.20-99,543,781.80-18,493,465.20

Finding the Fourth Proportional to 66,362,521.20, 99,543,781.80 and 18,493,465.20

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Solution

The fourth proportional to 66,362,521.20, 99,543,781.80 and 18,493,465.20 is: 27,740,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362,521.20 : 99,543,781.80 = 18,493,465.20 : x
  2. Step 2: Convert to fraction form
    66,362,521.20/99,543,781.80 = 18,493,465.20/x
  3. Step 3: Cross multiply
    66,362,521.20x = 99,543,781.80 × 18,493,465.20
  4. Step 4: Simplify right side
    66,362,521.20x = 1,840,909,464,594,693.25
  5. Step 5: Solve for x
    x = 1,840,909,464,594,693.25/66,362,521.20
  6. Step 6: Final answer
    x = 27,740,197.80

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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.