Home / 18,720,157.88-25,834,815.81-10,460,420.66

Finding the Fourth Proportional to 18,720,157.88, 25,834,815.81 and 10,460,420.66

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Solution

The fourth proportional to 18,720,157.88, 25,834,815.81 and 10,460,420.66 is: 14,435,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,157.88 : 25,834,815.81 = 10,460,420.66 : x
  2. Step 2: Convert to fraction form
    18,720,157.88/25,834,815.81 = 10,460,420.66/x
  3. Step 3: Cross multiply
    18,720,157.88x = 25,834,815.81 × 10,460,420.66
  4. Step 4: Simplify right side
    18,720,157.88x = 270,243,041,046,218.62
  5. Step 5: Solve for x
    x = 270,243,041,046,218.62/18,720,157.88
  6. Step 6: Final answer
    x = 14,435,938.14

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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.