Home / 189,036,458.40-282,987,817.20-112,319,997.60

Finding the Fourth Proportional to 189,036,458.40, 282,987,817.20 and 112,319,997.60

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Solution

The fourth proportional to 189,036,458.40, 282,987,817.20 and 112,319,997.60 is: 168,143,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,036,458.40 : 282,987,817.20 = 112,319,997.60 : x
  2. Step 2: Convert to fraction form
    189,036,458.40/282,987,817.20 = 112,319,997.60/x
  3. Step 3: Cross multiply
    189,036,458.40x = 282,987,817.20 × 112,319,997.60
  4. Step 4: Simplify right side
    189,036,458.40x = 31,785,190,948,733,236
  5. Step 5: Solve for x
    x = 31,785,190,948,733,236/189,036,458.40
  6. Step 6: Final answer
    x = 168,143,178.40

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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.