Home / 7,776,010.20-11,664,015.30-7,209,139.80

Finding the Fourth Proportional to 7,776,010.20, 11,664,015.30 and 7,209,139.80

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Solution

The fourth proportional to 7,776,010.20, 11,664,015.30 and 7,209,139.80 is: 10,813,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,010.20 : 11,664,015.30 = 7,209,139.80 : x
  2. Step 2: Convert to fraction form
    7,776,010.20/11,664,015.30 = 7,209,139.80/x
  3. Step 3: Cross multiply
    7,776,010.20x = 11,664,015.30 × 7,209,139.80
  4. Step 4: Simplify right side
    7,776,010.20x = 84,087,516,927,038.94
  5. Step 5: Solve for x
    x = 84,087,516,927,038.94/7,776,010.20
  6. Step 6: Final answer
    x = 10,813,709.70

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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.