Home / 21,455,729.60-32,197,904.54-7,808,872.18

Finding the Fourth Proportional to 21,455,729.60, 32,197,904.54 and 7,808,872.18

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Solution

The fourth proportional to 21,455,729.60, 32,197,904.54 and 7,808,872.18 is: 11,718,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455,729.60 : 32,197,904.54 = 7,808,872.18 : x
  2. Step 2: Convert to fraction form
    21,455,729.60/32,197,904.54 = 7,808,872.18/x
  3. Step 3: Cross multiply
    21,455,729.60x = 32,197,904.54 × 7,808,872.18
  4. Step 4: Simplify right side
    21,455,729.60x = 251,429,321,030,741.81
  5. Step 5: Solve for x
    x = 251,429,321,030,741.81/21,455,729.60
  6. Step 6: Final answer
    x = 11,718,516.49

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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.