Home / 797,567,999.20-1,196,351,998.80-312,909,618.40

Finding the Fourth Proportional to 797,567,999.20, 1,196,351,998.80 and 312,909,618.40

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Solution

The fourth proportional to 797,567,999.20, 1,196,351,998.80 and 312,909,618.40 is: 469,364,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,567,999.20 : 1,196,351,998.80 = 312,909,618.40 : x
  2. Step 2: Convert to fraction form
    797,567,999.20/1,196,351,998.80 = 312,909,618.40/x
  3. Step 3: Cross multiply
    797,567,999.20x = 1,196,351,998.80 × 312,909,618.40
  4. Step 4: Simplify right side
    797,567,999.20x = 374,350,047,416,585,216
  5. Step 5: Solve for x
    x = 374,350,047,416,585,216/797,567,999.20
  6. Step 6: Final answer
    x = 469,364,427.60

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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.