Home / 339,986,865.60-509,980,298.40-109,979,200.80

Finding the Fourth Proportional to 339,986,865.60, 509,980,298.40 and 109,979,200.80

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Solution

The fourth proportional to 339,986,865.60, 509,980,298.40 and 109,979,200.80 is: 164,968,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,986,865.60 : 509,980,298.40 = 109,979,200.80 : x
  2. Step 2: Convert to fraction form
    339,986,865.60/509,980,298.40 = 109,979,200.80/x
  3. Step 3: Cross multiply
    339,986,865.60x = 509,980,298.40 × 109,979,200.80
  4. Step 4: Simplify right side
    339,986,865.60x = 56,087,225,641,777,512
  5. Step 5: Solve for x
    x = 56,087,225,641,777,512/339,986,865.60
  6. Step 6: Final answer
    x = 164,968,801.20

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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.