Home / 7,776,005.70-11,664,008.55-7,209,135.30

Finding the Fourth Proportional to 7,776,005.70, 11,664,008.55 and 7,209,135.30

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Solution

The fourth proportional to 7,776,005.70, 11,664,008.55 and 7,209,135.30 is: 10,813,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,005.70 : 11,664,008.55 = 7,209,135.30 : x
  2. Step 2: Convert to fraction form
    7,776,005.70/11,664,008.55 = 7,209,135.30/x
  3. Step 3: Cross multiply
    7,776,005.70x = 11,664,008.55 × 7,209,135.30
  4. Step 4: Simplify right side
    7,776,005.70x = 84,087,415,777,306.81
  5. Step 5: Solve for x
    x = 84,087,415,777,306.81/7,776,005.70
  6. Step 6: Final answer
    x = 10,813,702.95

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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.