Home / 863,138,682.70-1,293,857,718.45-426,506,757.10

Finding the Fourth Proportional to 863,138,682.70, 1,293,857,718.45 and 426,506,757.10

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Solution

The fourth proportional to 863,138,682.70, 1,293,857,718.45 and 426,506,757.10 is: 639,339,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,138,682.70 : 1,293,857,718.45 = 426,506,757.10 : x
  2. Step 2: Convert to fraction form
    863,138,682.70/1,293,857,718.45 = 426,506,757.10/x
  3. Step 3: Cross multiply
    863,138,682.70x = 1,293,857,718.45 × 426,506,757.10
  4. Step 4: Simplify right side
    863,138,682.70x = 551,839,059,644,914,368
  5. Step 5: Solve for x
    x = 551,839,059,644,914,368/863,138,682.70
  6. Step 6: Final answer
    x = 639,339,970.16

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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.