Home / 12,938,167.53-17,854,721.06-7,136,865.72

Finding the Fourth Proportional to 12,938,167.53, 17,854,721.06 and 7,136,865.72

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Solution

The fourth proportional to 12,938,167.53, 17,854,721.06 and 7,136,865.72 is: 9,848,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,167.53 : 17,854,721.06 = 7,136,865.72 : x
  2. Step 2: Convert to fraction form
    12,938,167.53/17,854,721.06 = 7,136,865.72/x
  3. Step 3: Cross multiply
    12,938,167.53x = 17,854,721.06 × 7,136,865.72
  4. Step 4: Simplify right side
    12,938,167.53x = 127,426,746,637,591.73
  5. Step 5: Solve for x
    x = 127,426,746,637,591.73/12,938,167.53
  6. Step 6: Final answer
    x = 9,848,902.20

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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.