Home / 305,480,857.02-421,608,004.52-171,533,810.17

Finding the Fourth Proportional to 305,480,857.02, 421,608,004.52 and 171,533,810.17

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Solution

The fourth proportional to 305,480,857.02, 421,608,004.52 and 171,533,810.17 is: 236,741,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,480,857.02 : 421,608,004.52 = 171,533,810.17 : x
  2. Step 2: Convert to fraction form
    305,480,857.02/421,608,004.52 = 171,533,810.17/x
  3. Step 3: Cross multiply
    305,480,857.02x = 421,608,004.52 × 171,533,810.17
  4. Step 4: Simplify right side
    305,480,857.02x = 72,320,027,413,486,176
  5. Step 5: Solve for x
    x = 72,320,027,413,486,176/305,480,857.02
  6. Step 6: Final answer
    x = 236,741,601.81

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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.