Home / 117,622,309.60-176,433,464.40-78,880,260.70

Finding the Fourth Proportional to 117,622,309.60, 176,433,464.40 and 78,880,260.70

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Solution

The fourth proportional to 117,622,309.60, 176,433,464.40 and 78,880,260.70 is: 118,320,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,622,309.60 : 176,433,464.40 = 78,880,260.70 : x
  2. Step 2: Convert to fraction form
    117,622,309.60/176,433,464.40 = 78,880,260.70/x
  3. Step 3: Cross multiply
    117,622,309.60x = 176,433,464.40 × 78,880,260.70
  4. Step 4: Simplify right side
    117,622,309.60x = 13,917,117,668,076,170
  5. Step 5: Solve for x
    x = 13,917,117,668,076,170/117,622,309.60
  6. Step 6: Final answer
    x = 118,320,391.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.