Home / 13,128,732.57-19,700,037.15-9,315,200.53

Finding the Fourth Proportional to 13,128,732.57, 19,700,037.15 and 9,315,200.53

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Solution

The fourth proportional to 13,128,732.57, 19,700,037.15 and 9,315,200.53 is: 13,977,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,732.57 : 19,700,037.15 = 9,315,200.53 : x
  2. Step 2: Convert to fraction form
    13,128,732.57/19,700,037.15 = 9,315,200.53/x
  3. Step 3: Cross multiply
    13,128,732.57x = 19,700,037.15 × 9,315,200.53
  4. Step 4: Simplify right side
    13,128,732.57x = 183,509,796,500,699.66
  5. Step 5: Solve for x
    x = 183,509,796,500,699.66/13,128,732.57
  6. Step 6: Final answer
    x = 13,977,723.71

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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.