Home / 13,851,880.40-19,115,228.04-7,740,359.12

Finding the Fourth Proportional to 13,851,880.40, 19,115,228.04 and 7,740,359.12

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Solution

The fourth proportional to 13,851,880.40, 19,115,228.04 and 7,740,359.12 is: 10,681,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851,880.40 : 19,115,228.04 = 7,740,359.12 : x
  2. Step 2: Convert to fraction form
    13,851,880.40/19,115,228.04 = 7,740,359.12/x
  3. Step 3: Cross multiply
    13,851,880.40x = 19,115,228.04 × 7,740,359.12
  4. Step 4: Simplify right side
    13,851,880.40x = 147,958,729,690,293.72
  5. Step 5: Solve for x
    x = 147,958,729,690,293.72/13,851,880.40
  6. Step 6: Final answer
    x = 10,681,490.56

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1.5x scale

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.