Home / 21,297,128.75-31,932,906.47-9,768,154.13

Finding the Fourth Proportional to 21,297,128.75, 31,932,906.47 and 9,768,154.13

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Solution

The fourth proportional to 21,297,128.75, 31,932,906.47 and 9,768,154.13 is: 14,646,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,128.75 : 31,932,906.47 = 9,768,154.13 : x
  2. Step 2: Convert to fraction form
    21,297,128.75/31,932,906.47 = 9,768,154.13/x
  3. Step 3: Cross multiply
    21,297,128.75x = 31,932,906.47 × 9,768,154.13
  4. Step 4: Simplify right side
    21,297,128.75x = 311,925,552,168,993.50
  5. Step 5: Solve for x
    x = 311,925,552,168,993.50/21,297,128.75
  6. Step 6: Final answer
    x = 14,646,366.46

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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.