Home / 142,108,484.89-196,027,867.95-85,553,893.29

Finding the Fourth Proportional to 142,108,484.89, 196,027,867.95 and 85,553,893.29

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Solution

The fourth proportional to 142,108,484.89, 196,027,867.95 and 85,553,893.29 is: 118,015,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,108,484.89 : 196,027,867.95 = 85,553,893.29 : x
  2. Step 2: Convert to fraction form
    142,108,484.89/196,027,867.95 = 85,553,893.29/x
  3. Step 3: Cross multiply
    142,108,484.89x = 196,027,867.95 × 85,553,893.29
  4. Step 4: Simplify right side
    142,108,484.89x = 16,770,947,295,480,370
  5. Step 5: Solve for x
    x = 16,770,947,295,480,370/142,108,484.89
  6. Step 6: Final answer
    x = 118,015,101.69

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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.