Home / 1,291,967,482.52-1,782,679,945.20-727,364,564.12

Finding the Fourth Proportional to 1,291,967,482.52, 1,782,679,945.20 and 727,364,564.12

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Solution

The fourth proportional to 1,291,967,482.52, 1,782,679,945.20 and 727,364,564.12 is: 1,003,630,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,967,482.52 : 1,782,679,945.20 = 727,364,564.12 : x
  2. Step 2: Convert to fraction form
    1,291,967,482.52/1,782,679,945.20 = 727,364,564.12/x
  3. Step 3: Cross multiply
    1,291,967,482.52x = 1,782,679,945.20 × 727,364,564.12
  4. Step 4: Simplify right side
    1,291,967,482.52x = 1,296,658,221,305,863,424
  5. Step 5: Solve for x
    x = 1,296,658,221,305,863,424/1,291,967,482.52
  6. Step 6: Final answer
    x = 1,003,630,694.15

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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.