Home / 111,211,130.40-166,844,480.72-78,485,596.44

Finding the Fourth Proportional to 111,211,130.40, 166,844,480.72 and 78,485,596.44

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Solution

The fourth proportional to 111,211,130.40, 166,844,480.72 and 78,485,596.44 is: 117,748,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211,130.40 : 166,844,480.72 = 78,485,596.44 : x
  2. Step 2: Convert to fraction form
    111,211,130.40/166,844,480.72 = 78,485,596.44/x
  3. Step 3: Cross multiply
    111,211,130.40x = 166,844,480.72 × 78,485,596.44
  4. Step 4: Simplify right side
    111,211,130.40x = 13,094,888,582,031,280
  5. Step 5: Solve for x
    x = 13,094,888,582,031,280/111,211,130.40
  6. Step 6: Final answer
    x = 117,748,003.59

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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.