Home / 12,843,609.75-19,262,466.51-7,657,686.72

Finding the Fourth Proportional to 12,843,609.75, 19,262,466.51 and 7,657,686.72

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Solution

The fourth proportional to 12,843,609.75, 19,262,466.51 and 7,657,686.72 is: 11,484,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843,609.75 : 19,262,466.51 = 7,657,686.72 : x
  2. Step 2: Convert to fraction form
    12,843,609.75/19,262,466.51 = 7,657,686.72/x
  3. Step 3: Cross multiply
    12,843,609.75x = 19,262,466.51 × 7,657,686.72
  4. Step 4: Simplify right side
    12,843,609.75x = 147,505,933,988,071.75
  5. Step 5: Solve for x
    x = 147,505,933,988,071.75/12,843,609.75
  6. Step 6: Final answer
    x = 11,484,772.34

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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.