Home / 10,918,840.69-16,364,978.65-7,724,887.57

Finding the Fourth Proportional to 10,918,840.69, 16,364,978.65 and 7,724,887.57

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Solution

The fourth proportional to 10,918,840.69, 16,364,978.65 and 7,724,887.57 is: 11,577,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918,840.69 : 16,364,978.65 = 7,724,887.57 : x
  2. Step 2: Convert to fraction form
    10,918,840.69/16,364,978.65 = 7,724,887.57/x
  3. Step 3: Cross multiply
    10,918,840.69x = 16,364,978.65 × 7,724,887.57
  4. Step 4: Simplify right side
    10,918,840.69x = 126,417,620,156,700.39
  5. Step 5: Solve for x
    x = 126,417,620,156,700.39/10,918,840.69
  6. Step 6: Final answer
    x = 11,577,934.30

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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.