Home / 640,824,629.76-884,355,378.03-362,407,788

Finding the Fourth Proportional to 640,824,629.76, 884,355,378.03 and 362,407,788

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Solution

The fourth proportional to 640,824,629.76, 884,355,378.03 and 362,407,788 is: 500,132,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,824,629.76 : 884,355,378.03 = 362,407,788 : x
  2. Step 2: Convert to fraction form
    640,824,629.76/884,355,378.03 = 362,407,788/x
  3. Step 3: Cross multiply
    640,824,629.76x = 884,355,378.03 × 362,407,788
  4. Step 4: Simplify right side
    640,824,629.76x = 320,497,276,357,756,096
  5. Step 5: Solve for x
    x = 320,497,276,357,756,096/640,824,629.76
  6. Step 6: Final answer
    x = 500,132,581.48

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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.