Home / 13,309,107.20-19,963,660.80-7,262,489.60

Finding the Fourth Proportional to 13,309,107.20, 19,963,660.80 and 7,262,489.60

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Solution

The fourth proportional to 13,309,107.20, 19,963,660.80 and 7,262,489.60 is: 10,893,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,107.20 : 19,963,660.80 = 7,262,489.60 : x
  2. Step 2: Convert to fraction form
    13,309,107.20/19,963,660.80 = 7,262,489.60/x
  3. Step 3: Cross multiply
    13,309,107.20x = 19,963,660.80 × 7,262,489.60
  4. Step 4: Simplify right side
    13,309,107.20x = 144,985,878,937,927.69
  5. Step 5: Solve for x
    x = 144,985,878,937,927.69/13,309,107.20
  6. Step 6: Final answer
    x = 10,893,734.40

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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.