Home / 384,779,695.28-530,981,753.88-208,563,907.24

Finding the Fourth Proportional to 384,779,695.28, 530,981,753.88 and 208,563,907.24

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Solution

The fourth proportional to 384,779,695.28, 530,981,753.88 and 208,563,907.24 is: 287,810,481.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,695.28 : 530,981,753.88 = 208,563,907.24 : x
  2. Step 2: Convert to fraction form
    384,779,695.28/530,981,753.88 = 208,563,907.24/x
  3. Step 3: Cross multiply
    384,779,695.28x = 530,981,753.88 × 208,563,907.24
  4. Step 4: Simplify right side
    384,779,695.28x = 110,743,629,261,815,504
  5. Step 5: Solve for x
    x = 110,743,629,261,815,504/384,779,695.28
  6. Step 6: Final answer
    x = 287,810,481.22

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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.