Home / 13,683,345.80-18,882,203.22-7,487,156.43

Finding the Fourth Proportional to 13,683,345.80, 18,882,203.22 and 7,487,156.43

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Solution

The fourth proportional to 13,683,345.80, 18,882,203.22 and 7,487,156.43 is: 10,331,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683,345.80 : 18,882,203.22 = 7,487,156.43 : x
  2. Step 2: Convert to fraction form
    13,683,345.80/18,882,203.22 = 7,487,156.43/x
  3. Step 3: Cross multiply
    13,683,345.80x = 18,882,203.22 × 7,487,156.43
  4. Step 4: Simplify right side
    13,683,345.80x = 141,374,009,251,189.69
  5. Step 5: Solve for x
    x = 141,374,009,251,189.69/13,683,345.80
  6. Step 6: Final answer
    x = 10,331,830.49

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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.