Home / 21,297,145.50-31,932,931.59-9,768,170.88

Finding the Fourth Proportional to 21,297,145.50, 31,932,931.59 and 9,768,170.88

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Solution

The fourth proportional to 21,297,145.50, 31,932,931.59 and 9,768,170.88 is: 14,646,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,145.50 : 31,932,931.59 = 9,768,170.88 : x
  2. Step 2: Convert to fraction form
    21,297,145.50/31,932,931.59 = 9,768,170.88/x
  3. Step 3: Cross multiply
    21,297,145.50x = 31,932,931.59 × 9,768,170.88
  4. Step 4: Simplify right side
    21,297,145.50x = 311,926,332,470,470.12
  5. Step 5: Solve for x
    x = 311,926,332,470,470.12/21,297,145.50
  6. Step 6: Final answer
    x = 14,646,391.58

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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.