Home / 8,961,392,405.91-12,366,761,019.21-4,947,095,661.86

Finding the Fourth Proportional to 8,961,392,405.91, 12,366,761,019.21 and 4,947,095,661.86

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Solution

The fourth proportional to 8,961,392,405.91, 12,366,761,019.21 and 4,947,095,661.86 is: 6,827,013,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961,392,405.91 : 12,366,761,019.21 = 4,947,095,661.86 : x
  2. Step 2: Convert to fraction form
    8,961,392,405.91/12,366,761,019.21 = 4,947,095,661.86/x
  3. Step 3: Cross multiply
    8,961,392,405.91x = 12,366,761,019.21 × 4,947,095,661.86
  4. Step 4: Simplify right side
    8,961,392,405.91x = 61,179,549,789,331,300,352
  5. Step 5: Solve for x
    x = 61,179,549,789,331,300,352/8,961,392,405.91
  6. Step 6: Final answer
    x = 6,827,013,818.63

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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.