Home / 2,157,287,846.68-2,976,210,135.24-1,252,889,819.72

Finding the Fourth Proportional to 2,157,287,846.68, 2,976,210,135.24 and 1,252,889,819.72

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Solution

The fourth proportional to 2,157,287,846.68, 2,976,210,135.24 and 1,252,889,819.72 is: 1,728,495,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,287,846.68 : 2,976,210,135.24 = 1,252,889,819.72 : x
  2. Step 2: Convert to fraction form
    2,157,287,846.68/2,976,210,135.24 = 1,252,889,819.72/x
  3. Step 3: Cross multiply
    2,157,287,846.68x = 2,976,210,135.24 × 1,252,889,819.72
  4. Step 4: Simplify right side
    2,157,287,846.68x = 3,728,863,379,789,680,128
  5. Step 5: Solve for x
    x = 3,728,863,379,789,680,128/2,157,287,846.68
  6. Step 6: Final answer
    x = 1,728,495,984.22

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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.