Home / 12,543,431.02-17,317,355.31-7,901,195.47

Finding the Fourth Proportional to 12,543,431.02, 17,317,355.31 and 7,901,195.47

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Solution

The fourth proportional to 12,543,431.02, 17,317,355.31 and 7,901,195.47 is: 10,908,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,431.02 : 17,317,355.31 = 7,901,195.47 : x
  2. Step 2: Convert to fraction form
    12,543,431.02/17,317,355.31 = 7,901,195.47/x
  3. Step 3: Cross multiply
    12,543,431.02x = 17,317,355.31 × 7,901,195.47
  4. Step 4: Simplify right side
    12,543,431.02x = 136,827,809,284,459.05
  5. Step 5: Solve for x
    x = 136,827,809,284,459.05/12,543,431.02
  6. Step 6: Final answer
    x = 10,908,323.97

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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.