Home / 910,673,856.56-1,256,733,932.80-492,986,141.84

Finding the Fourth Proportional to 910,673,856.56, 1,256,733,932.80 and 492,986,141.84

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Solution

The fourth proportional to 910,673,856.56, 1,256,733,932.80 and 492,986,141.84 is: 680,323,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,673,856.56 : 1,256,733,932.80 = 492,986,141.84 : x
  2. Step 2: Convert to fraction form
    910,673,856.56/1,256,733,932.80 = 492,986,141.84/x
  3. Step 3: Cross multiply
    910,673,856.56x = 1,256,733,932.80 × 492,986,141.84
  4. Step 4: Simplify right side
    910,673,856.56x = 619,552,412,850,481,792
  5. Step 5: Solve for x
    x = 619,552,412,850,481,792/910,673,856.56
  6. Step 6: Final answer
    x = 680,323,046.93

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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.