Home / 21,312,129.60-31,968,194.40-11,234,433.60

Finding the Fourth Proportional to 21,312,129.60, 31,968,194.40 and 11,234,433.60

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Solution

The fourth proportional to 21,312,129.60, 31,968,194.40 and 11,234,433.60 is: 16,851,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,129.60 : 31,968,194.40 = 11,234,433.60 : x
  2. Step 2: Convert to fraction form
    21,312,129.60/31,968,194.40 = 11,234,433.60/x
  3. Step 3: Cross multiply
    21,312,129.60x = 31,968,194.40 × 11,234,433.60
  4. Step 4: Simplify right side
    21,312,129.60x = 359,144,557,298,691.81
  5. Step 5: Solve for x
    x = 359,144,557,298,691.81/21,312,129.60
  6. Step 6: Final answer
    x = 16,851,650.40

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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.