Home / 102,022,643.60-140,790,102.18-55,611,879.20

Finding the Fourth Proportional to 102,022,643.60, 140,790,102.18 and 55,611,879.20

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Solution

The fourth proportional to 102,022,643.60, 140,790,102.18 and 55,611,879.20 is: 76,743,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,022,643.60 : 140,790,102.18 = 55,611,879.20 : x
  2. Step 2: Convert to fraction form
    102,022,643.60/140,790,102.18 = 55,611,879.20/x
  3. Step 3: Cross multiply
    102,022,643.60x = 140,790,102.18 × 55,611,879.20
  4. Step 4: Simplify right side
    102,022,643.60x = 7,829,602,154,989,817
  5. Step 5: Solve for x
    x = 7,829,602,154,989,817/102,022,643.60
  6. Step 6: Final answer
    x = 76,743,768.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.