Home / 117,739,378.64-162,485,692.80-65,531,756.90

Finding the Fourth Proportional to 117,739,378.64, 162,485,692.80 and 65,531,756.90

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Solution

The fourth proportional to 117,739,378.64, 162,485,692.80 and 65,531,756.90 is: 90,436,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,739,378.64 : 162,485,692.80 = 65,531,756.90 : x
  2. Step 2: Convert to fraction form
    117,739,378.64/162,485,692.80 = 65,531,756.90/x
  3. Step 3: Cross multiply
    117,739,378.64x = 162,485,692.80 × 65,531,756.90
  4. Step 4: Simplify right side
    117,739,378.64x = 10,647,972,920,297,680
  5. Step 5: Solve for x
    x = 10,647,972,920,297,680/117,739,378.64
  6. Step 6: Final answer
    x = 90,436,802.40

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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.