Home / 216,418,885.32-324,633,054.06-130,229,390.28

Finding the Fourth Proportional to 216,418,885.32, 324,633,054.06 and 130,229,390.28

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Solution

The fourth proportional to 216,418,885.32, 324,633,054.06 and 130,229,390.28 is: 195,346,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,418,885.32 : 324,633,054.06 = 130,229,390.28 : x
  2. Step 2: Convert to fraction form
    216,418,885.32/324,633,054.06 = 130,229,390.28/x
  3. Step 3: Cross multiply
    216,418,885.32x = 324,633,054.06 × 130,229,390.28
  4. Step 4: Simplify right side
    216,418,885.32x = 42,276,764,694,968,080
  5. Step 5: Solve for x
    x = 42,276,764,694,968,080/216,418,885.32
  6. Step 6: Final answer
    x = 195,346,929.32

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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.