Home / 20,632,742.10-28,473,442.20-11,341,326.60

Finding the Fourth Proportional to 20,632,742.10, 28,473,442.20 and 11,341,326.60

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Solution

The fourth proportional to 20,632,742.10, 28,473,442.20 and 11,341,326.60 is: 15,651,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632,742.10 : 28,473,442.20 = 11,341,326.60 : x
  2. Step 2: Convert to fraction form
    20,632,742.10/28,473,442.20 = 11,341,326.60/x
  3. Step 3: Cross multiply
    20,632,742.10x = 28,473,442.20 × 11,341,326.60
  4. Step 4: Simplify right side
    20,632,742.10x = 322,926,607,416,422.50
  5. Step 5: Solve for x
    x = 322,926,607,416,422.50/20,632,742.10
  6. Step 6: Final answer
    x = 15,651,172.58

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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.