Home / 384,197,254.40-530,192,382.24-207,985,244.06

Finding the Fourth Proportional to 384,197,254.40, 530,192,382.24 and 207,985,244.06

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Solution

The fourth proportional to 384,197,254.40, 530,192,382.24 and 207,985,244.06 is: 287,019,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,197,254.40 : 530,192,382.24 = 207,985,244.06 : x
  2. Step 2: Convert to fraction form
    384,197,254.40/530,192,382.24 = 207,985,244.06/x
  3. Step 3: Cross multiply
    384,197,254.40x = 530,192,382.24 × 207,985,244.06
  4. Step 4: Simplify right side
    384,197,254.40x = 110,272,192,016,288,256
  5. Step 5: Solve for x
    x = 110,272,192,016,288,256/384,197,254.40
  6. Step 6: Final answer
    x = 287,019,729.46

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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.