Home / 339,986,887.60-509,980,331.40-109,979,222.80

Finding the Fourth Proportional to 339,986,887.60, 509,980,331.40 and 109,979,222.80

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Solution

The fourth proportional to 339,986,887.60, 509,980,331.40 and 109,979,222.80 is: 164,968,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,986,887.60 : 509,980,331.40 = 109,979,222.80 : x
  2. Step 2: Convert to fraction form
    339,986,887.60/509,980,331.40 = 109,979,222.80/x
  3. Step 3: Cross multiply
    339,986,887.60x = 509,980,331.40 × 109,979,222.80
  4. Step 4: Simplify right side
    339,986,887.60x = 56,087,240,490,658,432
  5. Step 5: Solve for x
    x = 56,087,240,490,658,432/339,986,887.60
  6. Step 6: Final answer
    x = 164,968,834.20

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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.