Home / 640,178,149.11-883,446,742.22-346,822,717.11

Finding the Fourth Proportional to 640,178,149.11, 883,446,742.22 and 346,822,717.11

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Solution

The fourth proportional to 640,178,149.11, 883,446,742.22 and 346,822,717.11 is: 478,615,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,178,149.11 : 883,446,742.22 = 346,822,717.11 : x
  2. Step 2: Convert to fraction form
    640,178,149.11/883,446,742.22 = 346,822,717.11/x
  3. Step 3: Cross multiply
    640,178,149.11x = 883,446,742.22 × 346,822,717.11
  4. Step 4: Simplify right side
    640,178,149.11x = 306,399,399,556,984,064
  5. Step 5: Solve for x
    x = 306,399,399,556,984,064/640,178,149.11
  6. Step 6: Final answer
    x = 478,615,835.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.