Home / 12,809,711.40-17,677,381.02-7,008,516.52

Finding the Fourth Proportional to 12,809,711.40, 17,677,381.02 and 7,008,516.52

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Solution

The fourth proportional to 12,809,711.40, 17,677,381.02 and 7,008,516.52 is: 9,671,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809,711.40 : 17,677,381.02 = 7,008,516.52 : x
  2. Step 2: Convert to fraction form
    12,809,711.40/17,677,381.02 = 7,008,516.52/x
  3. Step 3: Cross multiply
    12,809,711.40x = 17,677,381.02 × 7,008,516.52
  4. Step 4: Simplify right side
    12,809,711.40x = 123,892,216,909,004.44
  5. Step 5: Solve for x
    x = 123,892,216,909,004.44/12,809,711.40
  6. Step 6: Final answer
    x = 9,671,741.47

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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.