Home / 12,590,136.81-17,375,533.43-7,157,615.85

Finding the Fourth Proportional to 12,590,136.81, 17,375,533.43 and 7,157,615.85

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Solution

The fourth proportional to 12,590,136.81, 17,375,533.43 and 7,157,615.85 is: 9,878,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,136.81 : 17,375,533.43 = 7,157,615.85 : x
  2. Step 2: Convert to fraction form
    12,590,136.81/17,375,533.43 = 7,157,615.85/x
  3. Step 3: Cross multiply
    12,590,136.81x = 17,375,533.43 × 7,157,615.85
  4. Step 4: Simplify right side
    12,590,136.81x = 124,367,393,444,984.78
  5. Step 5: Solve for x
    x = 124,367,393,444,984.78/12,590,136.81
  6. Step 6: Final answer
    x = 9,878,160.60

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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.