Home / 12,938,166.78-17,854,720.02-7,136,864.97

Finding the Fourth Proportional to 12,938,166.78, 17,854,720.02 and 7,136,864.97

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Solution

The fourth proportional to 12,938,166.78, 17,854,720.02 and 7,136,864.97 is: 9,848,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,166.78 : 17,854,720.02 = 7,136,864.97 : x
  2. Step 2: Convert to fraction form
    12,938,166.78/17,854,720.02 = 7,136,864.97/x
  3. Step 3: Cross multiply
    12,938,166.78x = 17,854,720.02 × 7,136,864.97
  4. Step 4: Simplify right side
    12,938,166.78x = 127,426,725,859,895.69
  5. Step 5: Solve for x
    x = 127,426,725,859,895.69/12,938,166.78
  6. Step 6: Final answer
    x = 9,848,901.16

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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.