Home / 384,195,864.42-530,190,180.72-207,983,729.16

Finding the Fourth Proportional to 384,195,864.42, 530,190,180.72 and 207,983,729.16

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Solution

The fourth proportional to 384,195,864.42, 530,190,180.72 and 207,983,729.16 is: 287,017,485.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,195,864.42 : 530,190,180.72 = 207,983,729.16 : x
  2. Step 2: Convert to fraction form
    384,195,864.42/530,190,180.72 = 207,983,729.16/x
  3. Step 3: Cross multiply
    384,195,864.42x = 530,190,180.72 × 207,983,729.16
  4. Step 4: Simplify right side
    384,195,864.42x = 110,270,930,950,159,936
  5. Step 5: Solve for x
    x = 110,270,930,950,159,936/384,195,864.42
  6. Step 6: Final answer
    x = 287,017,485.51

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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.