Home / 151,997,755.68-209,776,328.64-85,020,436.08

Finding the Fourth Proportional to 151,997,755.68, 209,776,328.64 and 85,020,436.08

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Solution

The fourth proportional to 151,997,755.68, 209,776,328.64 and 85,020,436.08 is: 117,339,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,997,755.68 : 209,776,328.64 = 85,020,436.08 : x
  2. Step 2: Convert to fraction form
    151,997,755.68/209,776,328.64 = 85,020,436.08/x
  3. Step 3: Cross multiply
    151,997,755.68x = 209,776,328.64 × 85,020,436.08
  4. Step 4: Simplify right side
    151,997,755.68x = 17,835,274,940,234,192
  5. Step 5: Solve for x
    x = 17,835,274,940,234,192/151,997,755.68
  6. Step 6: Final answer
    x = 117,339,067.68

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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.