Home / 13,680,284.16-18,878,651.28-7,568,756.40

Finding the Fourth Proportional to 13,680,284.16, 18,878,651.28 and 7,568,756.40

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Solution

The fourth proportional to 13,680,284.16, 18,878,651.28 and 7,568,756.40 is: 10,444,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680,284.16 : 18,878,651.28 = 7,568,756.40 : x
  2. Step 2: Convert to fraction form
    13,680,284.16/18,878,651.28 = 7,568,756.40/x
  3. Step 3: Cross multiply
    13,680,284.16x = 18,878,651.28 × 7,568,756.40
  4. Step 4: Simplify right side
    13,680,284.16x = 142,887,912,698,868.22
  5. Step 5: Solve for x
    x = 142,887,912,698,868.22/13,680,284.16
  6. Step 6: Final answer
    x = 10,444,805.90

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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.