Home / 216,418,884.32-324,633,052.56-130,229,389.28

Finding the Fourth Proportional to 216,418,884.32, 324,633,052.56 and 130,229,389.28

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Solution

The fourth proportional to 216,418,884.32, 324,633,052.56 and 130,229,389.28 is: 195,346,927.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,418,884.32 : 324,633,052.56 = 130,229,389.28 : x
  2. Step 2: Convert to fraction form
    216,418,884.32/324,633,052.56 = 130,229,389.28/x
  3. Step 3: Cross multiply
    216,418,884.32x = 324,633,052.56 × 130,229,389.28
  4. Step 4: Simplify right side
    216,418,884.32x = 42,276,764,174,990,944
  5. Step 5: Solve for x
    x = 42,276,764,174,990,944/216,418,884.32
  6. Step 6: Final answer
    x = 195,346,927.82

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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.