Home / 381,942,146.90-572,913,264.74-119,647,137.52

Finding the Fourth Proportional to 381,942,146.90, 572,913,264.74 and 119,647,137.52

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Solution

The fourth proportional to 381,942,146.90, 572,913,264.74 and 119,647,137.52 is: 179,470,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,942,146.90 : 572,913,264.74 = 119,647,137.52 : x
  2. Step 2: Convert to fraction form
    381,942,146.90/572,913,264.74 = 119,647,137.52/x
  3. Step 3: Cross multiply
    381,942,146.90x = 572,913,264.74 × 119,647,137.52
  4. Step 4: Simplify right side
    381,942,146.90x = 68,547,432,169,916,144
  5. Step 5: Solve for x
    x = 68,547,432,169,916,144/381,942,146.90
  6. Step 6: Final answer
    x = 179,470,720.18

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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.