Home / 389,452,781.25-556,881,303.38

Finding the Third Proportional to 389,452,781.25 and 556,881,303.38

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Solution

The third proportional to 389,452,781.25 and 556,881,303.38 is: 796,288,538.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,452,781.25 : 556,881,303.38 = 556,881,303.38 : x
  2. Step 2: Convert to fraction form
    389,452,781.25/556,881,303.38 = 556,881,303.38/x
  3. Step 3: Cross multiply
    389,452,781.25x = 556,881,303.38 × 556,881,303.38
  4. Step 4: Simplify right side
    389,452,781.25x = 310,116,786,048,638,784
  5. Step 5: Solve for x
    x = 310,116,786,048,638,784/389,452,781.25
  6. Step 6: Final answer
    x = 796,288,538.63

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.