Home / 216,669,011.20-325,028,178.88-78,559,658.68

Finding the Fourth Proportional to 216,669,011.20, 325,028,178.88 and 78,559,658.68

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Solution

The fourth proportional to 216,669,011.20, 325,028,178.88 and 78,559,658.68 is: 117,848,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,669,011.20 : 325,028,178.88 = 78,559,658.68 : x
  2. Step 2: Convert to fraction form
    216,669,011.20/325,028,178.88 = 78,559,658.68/x
  3. Step 3: Cross multiply
    216,669,011.20x = 325,028,178.88 × 78,559,658.68
  4. Step 4: Simplify right side
    216,669,011.20x = 25,534,102,794,194,788
  5. Step 5: Solve for x
    x = 25,534,102,794,194,788/216,669,011.20
  6. Step 6: Final answer
    x = 117,848,429.98

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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.