Home / 21,335,030.86-31,989,586.94-8,365,643.25

Finding the Fourth Proportional to 21,335,030.86, 31,989,586.94 and 8,365,643.25

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Solution

The fourth proportional to 21,335,030.86, 31,989,586.94 and 8,365,643.25 is: 12,543,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,030.86 : 31,989,586.94 = 8,365,643.25 : x
  2. Step 2: Convert to fraction form
    21,335,030.86/31,989,586.94 = 8,365,643.25/x
  3. Step 3: Cross multiply
    21,335,030.86x = 31,989,586.94 × 8,365,643.25
  4. Step 4: Simplify right side
    21,335,030.86x = 267,613,471,924,481.12
  5. Step 5: Solve for x
    x = 267,613,471,924,481.12/21,335,030.86
  6. Step 6: Final answer
    x = 12,543,383.40

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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.