Home / 13,503,140.80-20,264,042.40-9,719,857.60

Finding the Fourth Proportional to 13,503,140.80, 20,264,042.40 and 9,719,857.60

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Solution

The fourth proportional to 13,503,140.80, 20,264,042.40 and 9,719,857.60 is: 14,586,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503,140.80 : 20,264,042.40 = 9,719,857.60 : x
  2. Step 2: Convert to fraction form
    13,503,140.80/20,264,042.40 = 9,719,857.60/x
  3. Step 3: Cross multiply
    13,503,140.80x = 20,264,042.40 × 9,719,857.60
  4. Step 4: Simplify right side
    13,503,140.80x = 196,963,606,528,362.22
  5. Step 5: Solve for x
    x = 196,963,606,528,362.22/13,503,140.80
  6. Step 6: Final answer
    x = 14,586,503.20

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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.