Home / 356,512,720.32-492,075,072.48-217,360,208.88

Finding the Fourth Proportional to 356,512,720.32, 492,075,072.48 and 217,360,208.88

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Solution

The fourth proportional to 356,512,720.32, 492,075,072.48 and 217,360,208.88 is: 300,010,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,512,720.32 : 492,075,072.48 = 217,360,208.88 : x
  2. Step 2: Convert to fraction form
    356,512,720.32/492,075,072.48 = 217,360,208.88/x
  3. Step 3: Cross multiply
    356,512,720.32x = 492,075,072.48 × 217,360,208.88
  4. Step 4: Simplify right side
    356,512,720.32x = 106,957,540,538,893,936
  5. Step 5: Solve for x
    x = 106,957,540,538,893,936/356,512,720.32
  6. Step 6: Final answer
    x = 300,010,446.87

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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.