Home / 863,138,556.20-1,294,707,834.30-784,060,135.40

Finding the Fourth Proportional to 863,138,556.20, 1,294,707,834.30 and 784,060,135.40

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Solution

The fourth proportional to 863,138,556.20, 1,294,707,834.30 and 784,060,135.40 is: 1,176,090,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,138,556.20 : 1,294,707,834.30 = 784,060,135.40 : x
  2. Step 2: Convert to fraction form
    863,138,556.20/1,294,707,834.30 = 784,060,135.40/x
  3. Step 3: Cross multiply
    863,138,556.20x = 1,294,707,834.30 × 784,060,135.40
  4. Step 4: Simplify right side
    863,138,556.20x = 1,015,128,799,864,698,752
  5. Step 5: Solve for x
    x = 1,015,128,799,864,698,752/863,138,556.20
  6. Step 6: Final answer
    x = 1,176,090,203.10

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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.