Home / 687,750,809.49-949,092,074.46-374,484,273.39

Finding the Fourth Proportional to 687,750,809.49, 949,092,074.46 and 374,484,273.39

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Solution

The fourth proportional to 687,750,809.49, 949,092,074.46 and 374,484,273.39 is: 516,786,096.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,750,809.49 : 949,092,074.46 = 374,484,273.39 : x
  2. Step 2: Convert to fraction form
    687,750,809.49/949,092,074.46 = 374,484,273.39/x
  3. Step 3: Cross multiply
    687,750,809.49x = 949,092,074.46 × 374,484,273.39
  4. Step 4: Simplify right side
    687,750,809.49x = 355,420,055,884,360,896
  5. Step 5: Solve for x
    x = 355,420,055,884,360,896/687,750,809.49
  6. Step 6: Final answer
    x = 516,786,096.04

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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.