Home / 12,890,166.81-17,788,075.11-7,088,947.95

Finding the Fourth Proportional to 12,890,166.81, 17,788,075.11 and 7,088,947.95

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Solution

The fourth proportional to 12,890,166.81, 17,788,075.11 and 7,088,947.95 is: 9,782,552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,166.81 : 17,788,075.11 = 7,088,947.95 : x
  2. Step 2: Convert to fraction form
    12,890,166.81/17,788,075.11 = 7,088,947.95/x
  3. Step 3: Cross multiply
    12,890,166.81x = 17,788,075.11 × 7,088,947.95
  4. Step 4: Simplify right side
    12,890,166.81x = 126,098,738,585,480.53
  5. Step 5: Solve for x
    x = 126,098,738,585,480.53/12,890,166.81
  6. Step 6: Final answer
    x = 9,782,552.89

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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.