Home / 668,604,000.60-1,002,906,000.90-208,541,431.80

Finding the Fourth Proportional to 668,604,000.60, 1,002,906,000.90 and 208,541,431.80

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Solution

The fourth proportional to 668,604,000.60, 1,002,906,000.90 and 208,541,431.80 is: 312,812,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,604,000.60 : 1,002,906,000.90 = 208,541,431.80 : x
  2. Step 2: Convert to fraction form
    668,604,000.60/1,002,906,000.90 = 208,541,431.80/x
  3. Step 3: Cross multiply
    668,604,000.60x = 1,002,906,000.90 × 208,541,431.80
  4. Step 4: Simplify right side
    668,604,000.60x = 209,147,453,388,498,080
  5. Step 5: Solve for x
    x = 209,147,453,388,498,080/668,604,000.60
  6. Step 6: Final answer
    x = 312,812,147.70

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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.