Home / 12,890,167.31-17,788,075.80-7,088,948.44

Finding the Fourth Proportional to 12,890,167.31, 17,788,075.80 and 7,088,948.44

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Solution

The fourth proportional to 12,890,167.31, 17,788,075.80 and 7,088,948.44 is: 9,782,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,167.31 : 17,788,075.80 = 7,088,948.44 : x
  2. Step 2: Convert to fraction form
    12,890,167.31/17,788,075.80 = 7,088,948.44/x
  3. Step 3: Cross multiply
    12,890,167.31x = 17,788,075.80 × 7,088,948.44
  4. Step 4: Simplify right side
    12,890,167.31x = 126,098,752,193,011.77
  5. Step 5: Solve for x
    x = 126,098,752,193,011.77/12,890,167.31
  6. Step 6: Final answer
    x = 9,782,553.57

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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.