Home / 12,472,840.80-18,695,264.40-7,084,072.80

Finding the Fourth Proportional to 12,472,840.80, 18,695,264.40 and 7,084,072.80

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Solution

The fourth proportional to 12,472,840.80, 18,695,264.40 and 7,084,072.80 is: 10,618,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472,840.80 : 18,695,264.40 = 7,084,072.80 : x
  2. Step 2: Convert to fraction form
    12,472,840.80/18,695,264.40 = 7,084,072.80/x
  3. Step 3: Cross multiply
    12,472,840.80x = 18,695,264.40 × 7,084,072.80
  4. Step 4: Simplify right side
    12,472,840.80x = 132,438,614,024,848.31
  5. Step 5: Solve for x
    x = 132,438,614,024,848.31/12,472,840.80
  6. Step 6: Final answer
    x = 10,618,159.58

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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.