Home / 505,270,168.89-758,176,583.55-210,368,871

Finding the Fourth Proportional to 505,270,168.89, 758,176,583.55 and 210,368,871

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Solution

The fourth proportional to 505,270,168.89, 758,176,583.55 and 210,368,871 is: 315,666,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,270,168.89 : 758,176,583.55 = 210,368,871 : x
  2. Step 2: Convert to fraction form
    505,270,168.89/758,176,583.55 = 210,368,871/x
  3. Step 3: Cross multiply
    505,270,168.89x = 758,176,583.55 × 210,368,871
  4. Step 4: Simplify right side
    505,270,168.89x = 159,496,751,900,050,656
  5. Step 5: Solve for x
    x = 159,496,751,900,050,656/505,270,168.89
  6. Step 6: Final answer
    x = 315,666,274.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.