Home / 12,788,973.15-17,648,906.94-6,987,754.37

Finding the Fourth Proportional to 12,788,973.15, 17,648,906.94 and 6,987,754.37

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Solution

The fourth proportional to 12,788,973.15, 17,648,906.94 and 6,987,754.37 is: 9,643,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,973.15 : 17,648,906.94 = 6,987,754.37 : x
  2. Step 2: Convert to fraction form
    12,788,973.15/17,648,906.94 = 6,987,754.37/x
  3. Step 3: Cross multiply
    12,788,973.15x = 17,648,906.94 × 6,987,754.37
  4. Step 4: Simplify right side
    12,788,973.15x = 123,326,226,507,463.81
  5. Step 5: Solve for x
    x = 123,326,226,507,463.81/12,788,973.15
  6. Step 6: Final answer
    x = 9,643,168.77

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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.