Home / 81,492,596.60-122,238,894.90-20,908,322.60

Finding the Fourth Proportional to 81,492,596.60, 122,238,894.90 and 20,908,322.60

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Solution

The fourth proportional to 81,492,596.60, 122,238,894.90 and 20,908,322.60 is: 31,362,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492,596.60 : 122,238,894.90 = 20,908,322.60 : x
  2. Step 2: Convert to fraction form
    81,492,596.60/122,238,894.90 = 20,908,322.60/x
  3. Step 3: Cross multiply
    81,492,596.60x = 122,238,894.90 × 20,908,322.60
  4. Step 4: Simplify right side
    81,492,596.60x = 2,555,810,248,836,695
  5. Step 5: Solve for x
    x = 2,555,810,248,836,695/81,492,596.60
  6. Step 6: Final answer
    x = 31,362,483.90

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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.