Home / 21,229,823.80-31,825,881.74-8,272,973.08

Finding the Fourth Proportional to 21,229,823.80, 31,825,881.74 and 8,272,973.08

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Solution

The fourth proportional to 21,229,823.80, 31,825,881.74 and 8,272,973.08 is: 12,402,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229,823.80 : 31,825,881.74 = 8,272,973.08 : x
  2. Step 2: Convert to fraction form
    21,229,823.80/31,825,881.74 = 8,272,973.08/x
  3. Step 3: Cross multiply
    21,229,823.80x = 31,825,881.74 × 8,272,973.08
  4. Step 4: Simplify right side
    21,229,823.80x = 263,294,662,882,283.56
  5. Step 5: Solve for x
    x = 263,294,662,882,283.56/21,229,823.80
  6. Step 6: Final answer
    x = 12,402,112.49

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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.