Home / 13,688,173.26-18,893,884.23-7,890,830.46

Finding the Fourth Proportional to 13,688,173.26, 18,893,884.23 and 7,890,830.46

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Solution

The fourth proportional to 13,688,173.26, 18,893,884.23 and 7,890,830.46 is: 10,891,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688,173.26 : 18,893,884.23 = 7,890,830.46 : x
  2. Step 2: Convert to fraction form
    13,688,173.26/18,893,884.23 = 7,890,830.46/x
  3. Step 3: Cross multiply
    13,688,173.26x = 18,893,884.23 × 7,890,830.46
  4. Step 4: Simplify right side
    13,688,173.26x = 149,088,437,189,797.66
  5. Step 5: Solve for x
    x = 149,088,437,189,797.66/13,688,173.26
  6. Step 6: Final answer
    x = 10,891,770.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.