Home / 112,414,819.43-154,979,889.04-78,878,733.35

Finding the Fourth Proportional to 112,414,819.43, 154,979,889.04 and 78,878,733.35

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Solution

The fourth proportional to 112,414,819.43, 154,979,889.04 and 78,878,733.35 is: 108,745,603.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,414,819.43 : 154,979,889.04 = 78,878,733.35 : x
  2. Step 2: Convert to fraction form
    112,414,819.43/154,979,889.04 = 78,878,733.35/x
  3. Step 3: Cross multiply
    112,414,819.43x = 154,979,889.04 × 78,878,733.35
  4. Step 4: Simplify right side
    112,414,819.43x = 12,224,617,342,236,844
  5. Step 5: Solve for x
    x = 12,224,617,342,236,844/112,414,819.43
  6. Step 6: Final answer
    x = 108,745,603.16

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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.