Home / 12,818,871.99-17,690,042.81-7,017,653.70

Finding the Fourth Proportional to 12,818,871.99, 17,690,042.81 and 7,017,653.70

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Solution

The fourth proportional to 12,818,871.99, 17,690,042.81 and 7,017,653.70 is: 9,684,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818,871.99 : 17,690,042.81 = 7,017,653.70 : x
  2. Step 2: Convert to fraction form
    12,818,871.99/17,690,042.81 = 7,017,653.70/x
  3. Step 3: Cross multiply
    12,818,871.99x = 17,690,042.81 × 7,017,653.70
  4. Step 4: Simplify right side
    12,818,871.99x = 124,142,594,343,666.62
  5. Step 5: Solve for x
    x = 124,142,594,343,666.62/12,818,871.99
  6. Step 6: Final answer
    x = 9,684,361.81

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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.