Home / 20,909,104.40-31,363,656.60-20,349,232.40

Finding the Fourth Proportional to 20,909,104.40, 31,363,656.60 and 20,349,232.40

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Solution

The fourth proportional to 20,909,104.40, 31,363,656.60 and 20,349,232.40 is: 30,523,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909,104.40 : 31,363,656.60 = 20,349,232.40 : x
  2. Step 2: Convert to fraction form
    20,909,104.40/31,363,656.60 = 20,349,232.40/x
  3. Step 3: Cross multiply
    20,909,104.40x = 31,363,656.60 × 20,349,232.40
  4. Step 4: Simplify right side
    20,909,104.40x = 638,226,337,067,193.88
  5. Step 5: Solve for x
    x = 638,226,337,067,193.88/20,909,104.40
  6. Step 6: Final answer
    x = 30,523,848.60

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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.