Home / 384,779,695.10-530,981,753.63-208,563,907.05

Finding the Fourth Proportional to 384,779,695.10, 530,981,753.63 and 208,563,907.05

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Solution

The fourth proportional to 384,779,695.10, 530,981,753.63 and 208,563,907.05 is: 287,810,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,695.10 : 530,981,753.63 = 208,563,907.05 : x
  2. Step 2: Convert to fraction form
    384,779,695.10/530,981,753.63 = 208,563,907.05/x
  3. Step 3: Cross multiply
    384,779,695.10x = 530,981,753.63 × 208,563,907.05
  4. Step 4: Simplify right side
    384,779,695.10x = 110,743,629,108,290,512
  5. Step 5: Solve for x
    x = 110,743,629,108,290,512/384,779,695.10
  6. Step 6: Final answer
    x = 287,810,480.96

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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.