Home / 142,685,211.33-196,906,599.41-77,495,115.33

Finding the Fourth Proportional to 142,685,211.33, 196,906,599.41 and 77,495,115.33

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Solution

The fourth proportional to 142,685,211.33, 196,906,599.41 and 77,495,115.33 is: 106,943,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,685,211.33 : 196,906,599.41 = 77,495,115.33 : x
  2. Step 2: Convert to fraction form
    142,685,211.33/196,906,599.41 = 77,495,115.33/x
  3. Step 3: Cross multiply
    142,685,211.33x = 196,906,599.41 × 77,495,115.33
  4. Step 4: Simplify right side
    142,685,211.33x = 15,259,299,630,128,584
  5. Step 5: Solve for x
    x = 15,259,299,630,128,584/142,685,211.33
  6. Step 6: Final answer
    x = 106,943,806.49

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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.