Home / 12,157,415.09-16,777,365.29-6,650,671.71

Finding the Fourth Proportional to 12,157,415.09, 16,777,365.29 and 6,650,671.71

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Solution

The fourth proportional to 12,157,415.09, 16,777,365.29 and 6,650,671.71 is: 9,177,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157,415.09 : 16,777,365.29 = 6,650,671.71 : x
  2. Step 2: Convert to fraction form
    12,157,415.09/16,777,365.29 = 6,650,671.71/x
  3. Step 3: Cross multiply
    12,157,415.09x = 16,777,365.29 × 6,650,671.71
  4. Step 4: Simplify right side
    12,157,415.09x = 111,580,748,681,476.39
  5. Step 5: Solve for x
    x = 111,580,748,681,476.39/12,157,415.09
  6. Step 6: Final answer
    x = 9,177,999.43

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1.5x scale

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.