Home / 772,291,999.70-1,158,437,999.55-708,802,514.90

Finding the Fourth Proportional to 772,291,999.70, 1,158,437,999.55 and 708,802,514.90

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Solution

The fourth proportional to 772,291,999.70, 1,158,437,999.55 and 708,802,514.90 is: 1,063,203,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,291,999.70 : 1,158,437,999.55 = 708,802,514.90 : x
  2. Step 2: Convert to fraction form
    772,291,999.70/1,158,437,999.55 = 708,802,514.90/x
  3. Step 3: Cross multiply
    772,291,999.70x = 1,158,437,999.55 × 708,802,514.90
  4. Step 4: Simplify right side
    772,291,999.70x = 821,103,767,436,765,056
  5. Step 5: Solve for x
    x = 821,103,767,436,765,056/772,291,999.70
  6. Step 6: Final answer
    x = 1,063,203,772.35

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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.