Home / 102,022,642.60-140,790,100.80-55,611,878.20

Finding the Fourth Proportional to 102,022,642.60, 140,790,100.80 and 55,611,878.20

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Solution

The fourth proportional to 102,022,642.60, 140,790,100.80 and 55,611,878.20 is: 76,743,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,022,642.60 : 140,790,100.80 = 55,611,878.20 : x
  2. Step 2: Convert to fraction form
    102,022,642.60/140,790,100.80 = 55,611,878.20/x
  3. Step 3: Cross multiply
    102,022,642.60x = 140,790,100.80 × 55,611,878.20
  4. Step 4: Simplify right side
    102,022,642.60x = 7,829,601,937,455,324
  5. Step 5: Solve for x
    x = 7,829,601,937,455,324/102,022,642.60
  6. Step 6: Final answer
    x = 76,743,767.25

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1.5x scale

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.