Home / 13,989,020-20,960,332.06-8,507,534.82

Finding the Fourth Proportional to 13,989,020, 20,960,332.06 and 8,507,534.82

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Solution

The fourth proportional to 13,989,020, 20,960,332.06 and 8,507,534.82 is: 12,747,194.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989,020 : 20,960,332.06 = 8,507,534.82 : x
  2. Step 2: Convert to fraction form
    13,989,020/20,960,332.06 = 8,507,534.82/x
  3. Step 3: Cross multiply
    13,989,020x = 20,960,332.06 × 8,507,534.82
  4. Step 4: Simplify right side
    13,989,020x = 178,320,754,839,212.31
  5. Step 5: Solve for x
    x = 178,320,754,839,212.31/13,989,020
  6. Step 6: Final answer
    x = 12,747,194.22

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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.