Home / 7,918,365.40-11,901,167.70-7,776,647.80

Finding the Fourth Proportional to 7,918,365.40, 11,901,167.70 and 7,776,647.80

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Solution

The fourth proportional to 7,918,365.40, 11,901,167.70 and 7,776,647.80 is: 11,688,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918,365.40 : 11,901,167.70 = 7,776,647.80 : x
  2. Step 2: Convert to fraction form
    7,918,365.40/11,901,167.70 = 7,776,647.80/x
  3. Step 3: Cross multiply
    7,918,365.40x = 11,901,167.70 × 7,776,647.80
  4. Step 4: Simplify right side
    7,918,365.40x = 92,551,189,611,636.05
  5. Step 5: Solve for x
    x = 92,551,189,611,636.05/7,918,365.40
  6. Step 6: Final answer
    x = 11,688,168.57

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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.