Home / 7,042,016,105.72-9,718,215,283.44-3,870,312,444.80

Finding the Fourth Proportional to 7,042,016,105.72, 9,718,215,283.44 and 3,870,312,444.80

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Solution

The fourth proportional to 7,042,016,105.72, 9,718,215,283.44 and 3,870,312,444.80 is: 5,341,159,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042,016,105.72 : 9,718,215,283.44 = 3,870,312,444.80 : x
  2. Step 2: Convert to fraction form
    7,042,016,105.72/9,718,215,283.44 = 3,870,312,444.80/x
  3. Step 3: Cross multiply
    7,042,016,105.72x = 9,718,215,283.44 × 3,870,312,444.80
  4. Step 4: Simplify right side
    7,042,016,105.72x = 37,612,529,552,783,163,392
  5. Step 5: Solve for x
    x = 37,612,529,552,783,163,392/7,042,016,105.72
  6. Step 6: Final answer
    x = 5,341,159,262.93

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1.5x scale

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.