Home / 613,008,002.70-919,512,004.05-290,521,730.70

Finding the Fourth Proportional to 613,008,002.70, 919,512,004.05 and 290,521,730.70

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Solution

The fourth proportional to 613,008,002.70, 919,512,004.05 and 290,521,730.70 is: 435,782,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,008,002.70 : 919,512,004.05 = 290,521,730.70 : x
  2. Step 2: Convert to fraction form
    613,008,002.70/919,512,004.05 = 290,521,730.70/x
  3. Step 3: Cross multiply
    613,008,002.70x = 919,512,004.05 × 290,521,730.70
  4. Step 4: Simplify right side
    613,008,002.70x = 267,138,218,816,031,392
  5. Step 5: Solve for x
    x = 267,138,218,816,031,392/613,008,002.70
  6. Step 6: Final answer
    x = 435,782,596.05

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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.