Home / 13,525,211.40-18,664,516.17-7,413,639.90

Finding the Fourth Proportional to 13,525,211.40, 18,664,516.17 and 7,413,639.90

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Solution

The fourth proportional to 13,525,211.40, 18,664,516.17 and 7,413,639.90 is: 10,230,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525,211.40 : 18,664,516.17 = 7,413,639.90 : x
  2. Step 2: Convert to fraction form
    13,525,211.40/18,664,516.17 = 7,413,639.90/x
  3. Step 3: Cross multiply
    13,525,211.40x = 18,664,516.17 × 7,413,639.90
  4. Step 4: Simplify right side
    13,525,211.40x = 138,372,001,792,107.20
  5. Step 5: Solve for x
    x = 138,372,001,792,107.20/13,525,211.40
  6. Step 6: Final answer
    x = 10,230,672.02

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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.