Home / 112,334,620.80-168,501,931.20-91,927,286.40

Finding the Fourth Proportional to 112,334,620.80, 168,501,931.20 and 91,927,286.40

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Solution

The fourth proportional to 112,334,620.80, 168,501,931.20 and 91,927,286.40 is: 137,890,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,334,620.80 : 168,501,931.20 = 91,927,286.40 : x
  2. Step 2: Convert to fraction form
    112,334,620.80/168,501,931.20 = 91,927,286.40/x
  3. Step 3: Cross multiply
    112,334,620.80x = 168,501,931.20 × 91,927,286.40
  4. Step 4: Simplify right side
    112,334,620.80x = 15,489,925,288,375,496
  5. Step 5: Solve for x
    x = 15,489,925,288,375,496/112,334,620.80
  6. Step 6: Final answer
    x = 137,890,929.60

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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.