Home / 407,372,380.06-562,185,928.43-288,507,628.80

Finding the Fourth Proportional to 407,372,380.06, 562,185,928.43 and 288,507,628.80

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Solution

The fourth proportional to 407,372,380.06, 562,185,928.43 and 288,507,628.80 is: 398,149,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,372,380.06 : 562,185,928.43 = 288,507,628.80 : x
  2. Step 2: Convert to fraction form
    407,372,380.06/562,185,928.43 = 288,507,628.80/x
  3. Step 3: Cross multiply
    407,372,380.06x = 562,185,928.43 × 288,507,628.80
  4. Step 4: Simplify right side
    407,372,380.06x = 162,194,929,151,812,320
  5. Step 5: Solve for x
    x = 162,194,929,151,812,320/407,372,380.06
  6. Step 6: Final answer
    x = 398,149,057.45

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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.