Home / 420,302,314.72-580,018,319.06-234,669,972.88

Finding the Fourth Proportional to 420,302,314.72, 580,018,319.06 and 234,669,972.88

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Solution

The fourth proportional to 420,302,314.72, 580,018,319.06 and 234,669,972.88 is: 323,845,190.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,302,314.72 : 580,018,319.06 = 234,669,972.88 : x
  2. Step 2: Convert to fraction form
    420,302,314.72/580,018,319.06 = 234,669,972.88/x
  3. Step 3: Cross multiply
    420,302,314.72x = 580,018,319.06 × 234,669,972.88
  4. Step 4: Simplify right side
    420,302,314.72x = 136,112,883,203,713,376
  5. Step 5: Solve for x
    x = 136,112,883,203,713,376/420,302,314.72
  6. Step 6: Final answer
    x = 323,845,190.56

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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.