Home / 384,779,695.15-530,981,753.70-208,563,907.11

Finding the Fourth Proportional to 384,779,695.15, 530,981,753.70 and 208,563,907.11

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Solution

The fourth proportional to 384,779,695.15, 530,981,753.70 and 208,563,907.11 is: 287,810,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,695.15 : 530,981,753.70 = 208,563,907.11 : x
  2. Step 2: Convert to fraction form
    384,779,695.15/530,981,753.70 = 208,563,907.11/x
  3. Step 3: Cross multiply
    384,779,695.15x = 530,981,753.70 × 208,563,907.11
  4. Step 4: Simplify right side
    384,779,695.15x = 110,743,629,155,791,696
  5. Step 5: Solve for x
    x = 110,743,629,155,791,696/384,779,695.15
  6. Step 6: Final answer
    x = 287,810,481.04

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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.