Home / 659,384,165.42-988,866,244.14-216,624,071.72

Finding the Fourth Proportional to 659,384,165.42, 988,866,244.14 and 216,624,071.72

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Solution

The fourth proportional to 659,384,165.42, 988,866,244.14 and 216,624,071.72 is: 324,867,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,384,165.42 : 988,866,244.14 = 216,624,071.72 : x
  2. Step 2: Convert to fraction form
    659,384,165.42/988,866,244.14 = 216,624,071.72/x
  3. Step 3: Cross multiply
    659,384,165.42x = 988,866,244.14 × 216,624,071.72
  4. Step 4: Simplify right side
    659,384,165.42x = 214,212,232,187,126,048
  5. Step 5: Solve for x
    x = 214,212,232,187,126,048/659,384,165.42
  6. Step 6: Final answer
    x = 324,867,116.05

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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.