Home / 12,947,764.59-17,865,247.86-7,440,075.36

Finding the Fourth Proportional to 12,947,764.59, 17,865,247.86 and 7,440,075.36

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Solution

The fourth proportional to 12,947,764.59, 17,865,247.86 and 7,440,075.36 is: 10,265,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,764.59 : 17,865,247.86 = 7,440,075.36 : x
  2. Step 2: Convert to fraction form
    12,947,764.59/17,865,247.86 = 7,440,075.36/x
  3. Step 3: Cross multiply
    12,947,764.59x = 17,865,247.86 × 7,440,075.36
  4. Step 4: Simplify right side
    12,947,764.59x = 132,918,790,403,478.73
  5. Step 5: Solve for x
    x = 132,918,790,403,478.73/12,947,764.59
  6. Step 6: Final answer
    x = 10,265,771.32

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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.