Home / 407,372,379.06-562,185,927.05-288,507,627.80

Finding the Fourth Proportional to 407,372,379.06, 562,185,927.05 and 288,507,627.80

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Solution

The fourth proportional to 407,372,379.06, 562,185,927.05 and 288,507,627.80 is: 398,149,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,372,379.06 : 562,185,927.05 = 288,507,627.80 : x
  2. Step 2: Convert to fraction form
    407,372,379.06/562,185,927.05 = 288,507,627.80/x
  3. Step 3: Cross multiply
    407,372,379.06x = 562,185,927.05 × 288,507,627.80
  4. Step 4: Simplify right side
    407,372,379.06x = 162,194,928,191,485,888
  5. Step 5: Solve for x
    x = 162,194,928,191,485,888/407,372,379.06
  6. Step 6: Final answer
    x = 398,149,056.07

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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.