Home / 13,145,418.40-19,718,127.60-12,641,533.60

Finding the Fourth Proportional to 13,145,418.40, 19,718,127.60 and 12,641,533.60

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Solution

The fourth proportional to 13,145,418.40, 19,718,127.60 and 12,641,533.60 is: 18,962,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,418.40 : 19,718,127.60 = 12,641,533.60 : x
  2. Step 2: Convert to fraction form
    13,145,418.40/19,718,127.60 = 12,641,533.60/x
  3. Step 3: Cross multiply
    13,145,418.40x = 19,718,127.60 × 12,641,533.60
  4. Step 4: Simplify right side
    13,145,418.40x = 249,267,372,584,487.38
  5. Step 5: Solve for x
    x = 249,267,372,584,487.38/13,145,418.40
  6. Step 6: Final answer
    x = 18,962,300.40

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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.