Home / 2,187,586,960.32-3,018,890,176.56-1,295,564,422.80

Finding the Fourth Proportional to 2,187,586,960.32, 3,018,890,176.56 and 1,295,564,422.80

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Solution

The fourth proportional to 2,187,586,960.32, 3,018,890,176.56 and 1,295,564,422.80 is: 1,787,890,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,586,960.32 : 3,018,890,176.56 = 1,295,564,422.80 : x
  2. Step 2: Convert to fraction form
    2,187,586,960.32/3,018,890,176.56 = 1,295,564,422.80/x
  3. Step 3: Cross multiply
    2,187,586,960.32x = 3,018,890,176.56 × 1,295,564,422.80
  4. Step 4: Simplify right side
    2,187,586,960.32x = 3,911,166,709,091,546,112
  5. Step 5: Solve for x
    x = 3,911,166,709,091,546,112/2,187,586,960.32
  6. Step 6: Final answer
    x = 1,787,890,849.61

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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.