Home / 21,315,367.89-31,959,304.45-8,362,827.59

Finding the Fourth Proportional to 21,315,367.89, 31,959,304.45 and 8,362,827.59

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Solution

The fourth proportional to 21,315,367.89, 31,959,304.45 and 8,362,827.59 is: 12,538,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,367.89 : 31,959,304.45 = 8,362,827.59 : x
  2. Step 2: Convert to fraction form
    21,315,367.89/31,959,304.45 = 8,362,827.59/x
  3. Step 3: Cross multiply
    21,315,367.89x = 31,959,304.45 × 8,362,827.59
  4. Step 4: Simplify right side
    21,315,367.89x = 267,270,152,830,966.19
  5. Step 5: Solve for x
    x = 267,270,152,830,966.19/21,315,367.89
  6. Step 6: Final answer
    x = 12,538,847.76

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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.