Home / 12,913,135.60-17,820,933.04-7,111,915.80

Finding the Fourth Proportional to 12,913,135.60, 17,820,933.04 and 7,111,915.80

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Solution

The fourth proportional to 12,913,135.60, 17,820,933.04 and 7,111,915.80 is: 9,814,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,135.60 : 17,820,933.04 = 7,111,915.80 : x
  2. Step 2: Convert to fraction form
    12,913,135.60/17,820,933.04 = 7,111,915.80/x
  3. Step 3: Cross multiply
    12,913,135.60x = 17,820,933.04 × 7,111,915.80
  4. Step 4: Simplify right side
    12,913,135.60x = 126,740,975,257,918.02
  5. Step 5: Solve for x
    x = 126,740,975,257,918.02/12,913,135.60
  6. Step 6: Final answer
    x = 9,814,887.66

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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.