Home / 827,004,598.80-1,239,756,068.34-412,608,164.64

Finding the Fourth Proportional to 827,004,598.80, 1,239,756,068.34 and 412,608,164.64

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Solution

The fourth proportional to 827,004,598.80, 1,239,756,068.34 and 412,608,164.64 is: 618,537,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,004,598.80 : 1,239,756,068.34 = 412,608,164.64 : x
  2. Step 2: Convert to fraction form
    827,004,598.80/1,239,756,068.34 = 412,608,164.64/x
  3. Step 3: Cross multiply
    827,004,598.80x = 1,239,756,068.34 × 412,608,164.64
  4. Step 4: Simplify right side
    827,004,598.80x = 511,533,475,959,069,760
  5. Step 5: Solve for x
    x = 511,533,475,959,069,760/827,004,598.80
  6. Step 6: Final answer
    x = 618,537,643.81

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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.