Home / 128,547,819.32-192,795,947.74-62,940,689.96

Finding the Fourth Proportional to 128,547,819.32, 192,795,947.74 and 62,940,689.96

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Solution

The fourth proportional to 128,547,819.32, 192,795,947.74 and 62,940,689.96 is: 94,398,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547,819.32 : 192,795,947.74 = 62,940,689.96 : x
  2. Step 2: Convert to fraction form
    128,547,819.32/192,795,947.74 = 62,940,689.96/x
  3. Step 3: Cross multiply
    128,547,819.32x = 192,795,947.74 × 62,940,689.96
  4. Step 4: Simplify right side
    128,547,819.32x = 12,134,709,972,247,704
  5. Step 5: Solve for x
    x = 12,134,709,972,247,704/128,547,819.32
  6. Step 6: Final answer
    x = 94,398,411.71

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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.