Home / 136,287,861.66-188,076,275.73-74,408,198.40

Finding the Fourth Proportional to 136,287,861.66, 188,076,275.73 and 74,408,198.40

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Solution

The fourth proportional to 136,287,861.66, 188,076,275.73 and 74,408,198.40 is: 102,682,782.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,287,861.66 : 188,076,275.73 = 74,408,198.40 : x
  2. Step 2: Convert to fraction form
    136,287,861.66/188,076,275.73 = 74,408,198.40/x
  3. Step 3: Cross multiply
    136,287,861.66x = 188,076,275.73 × 74,408,198.40
  4. Step 4: Simplify right side
    136,287,861.66x = 13,994,416,838,850,946
  5. Step 5: Solve for x
    x = 13,994,416,838,850,946/136,287,861.66
  6. Step 6: Final answer
    x = 102,682,782.37

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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.