Home / 12,947,764.84-17,865,248.21-7,440,075.61

Finding the Fourth Proportional to 12,947,764.84, 17,865,248.21 and 7,440,075.61

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Solution

The fourth proportional to 12,947,764.84, 17,865,248.21 and 7,440,075.61 is: 10,265,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,764.84 : 17,865,248.21 = 7,440,075.61 : x
  2. Step 2: Convert to fraction form
    12,947,764.84/17,865,248.21 = 7,440,075.61/x
  3. Step 3: Cross multiply
    12,947,764.84x = 17,865,248.21 × 7,440,075.61
  4. Step 4: Simplify right side
    12,947,764.84x = 132,918,797,473,817.17
  5. Step 5: Solve for x
    x = 132,918,797,473,817.17/12,947,764.84
  6. Step 6: Final answer
    x = 10,265,771.67

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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.