Home / 7,776,553.40-11,664,830.10-6,642,812.60

Finding the Fourth Proportional to 7,776,553.40, 11,664,830.10 and 6,642,812.60

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Solution

The fourth proportional to 7,776,553.40, 11,664,830.10 and 6,642,812.60 is: 9,964,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,553.40 : 11,664,830.10 = 6,642,812.60 : x
  2. Step 2: Convert to fraction form
    7,776,553.40/11,664,830.10 = 6,642,812.60/x
  3. Step 3: Cross multiply
    7,776,553.40x = 11,664,830.10 × 6,642,812.60
  4. Step 4: Simplify right side
    7,776,553.40x = 77,487,280,365,139.25
  5. Step 5: Solve for x
    x = 77,487,280,365,139.25/7,776,553.40
  6. Step 6: Final answer
    x = 9,964,218.90

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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.