Home / 205,076,509,974.10-307,369,876,948.35-85,693,603,734.10

Finding the Fourth Proportional to 205,076,509,974.10, 307,369,876,948.35 and 85,693,603,734.10

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Solution

The fourth proportional to 205,076,509,974.10, 307,369,876,948.35 and 85,693,603,734.10 is: 128,438,076,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,076,509,974.10 : 307,369,876,948.35 = 85,693,603,734.10 : x
  2. Step 2: Convert to fraction form
    205,076,509,974.10/307,369,876,948.35 = 85,693,603,734.10/x
  3. Step 3: Cross multiply
    205,076,509,974.10x = 307,369,876,948.35 × 85,693,603,734.10
  4. Step 4: Simplify right side
    205,076,509,974.10x = 26,339,632,435,010,981,593,088
  5. Step 5: Solve for x
    x = 26,339,632,435,010,981,593,088/205,076,509,974.10
  6. Step 6: Final answer
    x = 128,438,076,298.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.