Home / 9,715,880.40-13,409,097.12-5,641,499.28

Finding the Fourth Proportional to 9,715,880.40, 13,409,097.12 and 5,641,499.28

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Solution

The fourth proportional to 9,715,880.40, 13,409,097.12 and 5,641,499.28 is: 7,785,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715,880.40 : 13,409,097.12 = 5,641,499.28 : x
  2. Step 2: Convert to fraction form
    9,715,880.40/13,409,097.12 = 5,641,499.28/x
  3. Step 3: Cross multiply
    9,715,880.40x = 13,409,097.12 × 5,641,499.28
  4. Step 4: Simplify right side
    9,715,880.40x = 75,647,411,747,930.08
  5. Step 5: Solve for x
    x = 75,647,411,747,930.08/9,715,880.40
  6. Step 6: Final answer
    x = 7,785,955.43

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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.