Home / 137,893,170.09-190,285,697.52-78,346,600.94

Finding the Fourth Proportional to 137,893,170.09, 190,285,697.52 and 78,346,600.94

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Solution

The fourth proportional to 137,893,170.09, 190,285,697.52 and 78,346,600.94 is: 108,114,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,893,170.09 : 190,285,697.52 = 78,346,600.94 : x
  2. Step 2: Convert to fraction form
    137,893,170.09/190,285,697.52 = 78,346,600.94/x
  3. Step 3: Cross multiply
    137,893,170.09x = 190,285,697.52 × 78,346,600.94
  4. Step 4: Simplify right side
    137,893,170.09x = 14,908,237,607,374,192
  5. Step 5: Solve for x
    x = 14,908,237,607,374,192/137,893,170.09
  6. Step 6: Final answer
    x = 108,114,401.88

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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.