Home / 772,292,003.70-1,158,438,005.55-708,802,518.90

Finding the Fourth Proportional to 772,292,003.70, 1,158,438,005.55 and 708,802,518.90

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Solution

The fourth proportional to 772,292,003.70, 1,158,438,005.55 and 708,802,518.90 is: 1,063,203,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,292,003.70 : 1,158,438,005.55 = 708,802,518.90 : x
  2. Step 2: Convert to fraction form
    772,292,003.70/1,158,438,005.55 = 708,802,518.90/x
  3. Step 3: Cross multiply
    772,292,003.70x = 1,158,438,005.55 × 708,802,518.90
  4. Step 4: Simplify right side
    772,292,003.70x = 821,103,776,323,332,096
  5. Step 5: Solve for x
    x = 821,103,776,323,332,096/772,292,003.70
  6. Step 6: Final answer
    x = 1,063,203,778.35

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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.