Home / 12,946,635.88-17,866,269.54-7,145,417.56

Finding the Fourth Proportional to 12,946,635.88, 17,866,269.54 and 7,145,417.56

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Solution

The fourth proportional to 12,946,635.88, 17,866,269.54 and 7,145,417.56 is: 9,860,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,635.88 : 17,866,269.54 = 7,145,417.56 : x
  2. Step 2: Convert to fraction form
    12,946,635.88/17,866,269.54 = 7,145,417.56/x
  3. Step 3: Cross multiply
    12,946,635.88x = 17,866,269.54 × 7,145,417.56
  4. Step 4: Simplify right side
    12,946,635.88x = 127,661,956,102,809.11
  5. Step 5: Solve for x
    x = 127,661,956,102,809.11/12,946,635.88
  6. Step 6: Final answer
    x = 9,860,627.68

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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.