Home / 21,787,442.40-32,681,163.60-15,068,978.40

Finding the Fourth Proportional to 21,787,442.40, 32,681,163.60 and 15,068,978.40

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Solution

The fourth proportional to 21,787,442.40, 32,681,163.60 and 15,068,978.40 is: 22,603,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787,442.40 : 32,681,163.60 = 15,068,978.40 : x
  2. Step 2: Convert to fraction form
    21,787,442.40/32,681,163.60 = 15,068,978.40/x
  3. Step 3: Cross multiply
    21,787,442.40x = 32,681,163.60 × 15,068,978.40
  4. Step 4: Simplify right side
    21,787,442.40x = 492,471,748,375,266.25
  5. Step 5: Solve for x
    x = 492,471,748,375,266.25/21,787,442.40
  6. Step 6: Final answer
    x = 22,603,467.60

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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.