Home / 111,260,782.40-166,891,173.60-77,248,558.40

Finding the Fourth Proportional to 111,260,782.40, 166,891,173.60 and 77,248,558.40

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Solution

The fourth proportional to 111,260,782.40, 166,891,173.60 and 77,248,558.40 is: 115,872,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,260,782.40 : 166,891,173.60 = 77,248,558.40 : x
  2. Step 2: Convert to fraction form
    111,260,782.40/166,891,173.60 = 77,248,558.40/x
  3. Step 3: Cross multiply
    111,260,782.40x = 166,891,173.60 × 77,248,558.40
  4. Step 4: Simplify right side
    111,260,782.40x = 12,892,102,570,284,138
  5. Step 5: Solve for x
    x = 12,892,102,570,284,138/111,260,782.40
  6. Step 6: Final answer
    x = 115,872,837.60

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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.