Home / 291,876,510.49-402,789,571.71-159,717,517.92

Finding the Fourth Proportional to 291,876,510.49, 402,789,571.71 and 159,717,517.92

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Solution

The fourth proportional to 291,876,510.49, 402,789,571.71 and 159,717,517.92 is: 220,410,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,876,510.49 : 402,789,571.71 = 159,717,517.92 : x
  2. Step 2: Convert to fraction form
    291,876,510.49/402,789,571.71 = 159,717,517.92/x
  3. Step 3: Cross multiply
    291,876,510.49x = 402,789,571.71 × 159,717,517.92
  4. Step 4: Simplify right side
    291,876,510.49x = 64,332,550,638,492,576
  5. Step 5: Solve for x
    x = 64,332,550,638,492,576/291,876,510.49
  6. Step 6: Final answer
    x = 220,410,167.75

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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.