Home / 111,211,094.61-166,844,427.28-78,485,561.08

Finding the Fourth Proportional to 111,211,094.61, 166,844,427.28 and 78,485,561.08

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Solution

The fourth proportional to 111,211,094.61, 166,844,427.28 and 78,485,561.08 is: 117,747,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211,094.61 : 166,844,427.28 = 78,485,561.08 : x
  2. Step 2: Convert to fraction form
    111,211,094.61/166,844,427.28 = 78,485,561.08/x
  3. Step 3: Cross multiply
    111,211,094.61x = 166,844,427.28 × 78,485,561.08
  4. Step 4: Simplify right side
    111,211,094.61x = 13,094,878,487,528,734
  5. Step 5: Solve for x
    x = 13,094,878,487,528,734/111,211,094.61
  6. Step 6: Final answer
    x = 117,747,950.72

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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.