Home / 20,215,820.40-30,323,730.60-18,032,319.60

Finding the Fourth Proportional to 20,215,820.40, 30,323,730.60 and 18,032,319.60

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Solution

The fourth proportional to 20,215,820.40, 30,323,730.60 and 18,032,319.60 is: 27,048,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,820.40 : 30,323,730.60 = 18,032,319.60 : x
  2. Step 2: Convert to fraction form
    20,215,820.40/30,323,730.60 = 18,032,319.60/x
  3. Step 3: Cross multiply
    20,215,820.40x = 30,323,730.60 × 18,032,319.60
  4. Step 4: Simplify right side
    20,215,820.40x = 546,807,201,643,499.81
  5. Step 5: Solve for x
    x = 546,807,201,643,499.81/20,215,820.40
  6. Step 6: Final answer
    x = 27,048,479.40

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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.