Home / 12,938,084.66-17,853,177.20-7,136,865.95

Finding the Fourth Proportional to 12,938,084.66, 17,853,177.20 and 7,136,865.95

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Solution

The fourth proportional to 12,938,084.66, 17,853,177.20 and 7,136,865.95 is: 9,848,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,084.66 : 17,853,177.20 = 7,136,865.95 : x
  2. Step 2: Convert to fraction form
    12,938,084.66/17,853,177.20 = 7,136,865.95/x
  3. Step 3: Cross multiply
    12,938,084.66x = 17,853,177.20 × 7,136,865.95
  4. Step 4: Simplify right side
    12,938,084.66x = 127,415,732,333,046.12
  5. Step 5: Solve for x
    x = 127,415,732,333,046.12/12,938,084.66
  6. Step 6: Final answer
    x = 9,848,113.97

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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.