Home / 1,260,184,112.89-1,890,260,964.01-327,424,424.78

Finding the Fourth Proportional to 1,260,184,112.89, 1,890,260,964.01 and 327,424,424.78

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Solution

The fourth proportional to 1,260,184,112.89, 1,890,260,964.01 and 327,424,424.78 is: 491,132,686.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,184,112.89 : 1,890,260,964.01 = 327,424,424.78 : x
  2. Step 2: Convert to fraction form
    1,260,184,112.89/1,890,260,964.01 = 327,424,424.78/x
  3. Step 3: Cross multiply
    1,260,184,112.89x = 1,890,260,964.01 × 327,424,424.78
  4. Step 4: Simplify right side
    1,260,184,112.89x = 618,917,608,830,213,888
  5. Step 5: Solve for x
    x = 618,917,608,830,213,888/1,260,184,112.89
  6. Step 6: Final answer
    x = 491,132,686.49

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Double scale
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1.5x scale

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.