Home / 117,417,880.80-176,126,821.20-81,586,072.80

Finding the Fourth Proportional to 117,417,880.80, 176,126,821.20 and 81,586,072.80

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Solution

The fourth proportional to 117,417,880.80, 176,126,821.20 and 81,586,072.80 is: 122,379,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,417,880.80 : 176,126,821.20 = 81,586,072.80 : x
  2. Step 2: Convert to fraction form
    117,417,880.80/176,126,821.20 = 81,586,072.80/x
  3. Step 3: Cross multiply
    117,417,880.80x = 176,126,821.20 × 81,586,072.80
  4. Step 4: Simplify right side
    117,417,880.80x = 14,369,495,656,455,782
  5. Step 5: Solve for x
    x = 14,369,495,656,455,782/117,417,880.80
  6. Step 6: Final answer
    x = 122,379,109.20

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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.