Home / 12,999,191.73-17,938,664.84-7,197,848.61

Finding the Fourth Proportional to 12,999,191.73, 17,938,664.84 and 7,197,848.61

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Solution

The fourth proportional to 12,999,191.73, 17,938,664.84 and 7,197,848.61 is: 9,932,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,191.73 : 17,938,664.84 = 7,197,848.61 : x
  2. Step 2: Convert to fraction form
    12,999,191.73/17,938,664.84 = 7,197,848.61/x
  3. Step 3: Cross multiply
    12,999,191.73x = 17,938,664.84 × 7,197,848.61
  4. Step 4: Simplify right side
    12,999,191.73x = 129,119,793,747,860.64
  5. Step 5: Solve for x
    x = 129,119,793,747,860.64/12,999,191.73
  6. Step 6: Final answer
    x = 9,932,909.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.