Home / 305,480,856.02-421,608,003.14-171,533,809.17

Finding the Fourth Proportional to 305,480,856.02, 421,608,003.14 and 171,533,809.17

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Solution

The fourth proportional to 305,480,856.02, 421,608,003.14 and 171,533,809.17 is: 236,741,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,480,856.02 : 421,608,003.14 = 171,533,809.17 : x
  2. Step 2: Convert to fraction form
    305,480,856.02/421,608,003.14 = 171,533,809.17/x
  3. Step 3: Cross multiply
    305,480,856.02x = 421,608,003.14 × 171,533,809.17
  4. Step 4: Simplify right side
    305,480,856.02x = 72,320,026,755,590,352
  5. Step 5: Solve for x
    x = 72,320,026,755,590,352/305,480,856.02
  6. Step 6: Final answer
    x = 236,741,600.44

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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.