Home / 12,528,320.94-17,291,507.58-8,169,840.45

Finding the Fourth Proportional to 12,528,320.94, 17,291,507.58 and 8,169,840.45

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Solution

The fourth proportional to 12,528,320.94, 17,291,507.58 and 8,169,840.45 is: 11,275,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,320.94 : 17,291,507.58 = 8,169,840.45 : x
  2. Step 2: Convert to fraction form
    12,528,320.94/17,291,507.58 = 8,169,840.45/x
  3. Step 3: Cross multiply
    12,528,320.94x = 17,291,507.58 × 8,169,840.45
  4. Step 4: Simplify right side
    12,528,320.94x = 141,268,858,068,565.59
  5. Step 5: Solve for x
    x = 141,268,858,068,565.59/12,528,320.94
  6. Step 6: Final answer
    x = 11,275,960.98

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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.