Home / 12,438,052.80-18,657,079.20-11,430,283.20

Finding the Fourth Proportional to 12,438,052.80, 18,657,079.20 and 11,430,283.20

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Solution

The fourth proportional to 12,438,052.80, 18,657,079.20 and 11,430,283.20 is: 17,145,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,052.80 : 18,657,079.20 = 11,430,283.20 : x
  2. Step 2: Convert to fraction form
    12,438,052.80/18,657,079.20 = 11,430,283.20/x
  3. Step 3: Cross multiply
    12,438,052.80x = 18,657,079.20 × 11,430,283.20
  4. Step 4: Simplify right side
    12,438,052.80x = 213,255,698,940,829.41
  5. Step 5: Solve for x
    x = 213,255,698,940,829.41/12,438,052.80
  6. Step 6: Final answer
    x = 17,145,424.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.