Home / 804,816,010.40-1,207,224,015.60-287,830,205.60

Finding the Fourth Proportional to 804,816,010.40, 1,207,224,015.60 and 287,830,205.60

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Solution

The fourth proportional to 804,816,010.40, 1,207,224,015.60 and 287,830,205.60 is: 431,745,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,816,010.40 : 1,207,224,015.60 = 287,830,205.60 : x
  2. Step 2: Convert to fraction form
    804,816,010.40/1,207,224,015.60 = 287,830,205.60/x
  3. Step 3: Cross multiply
    804,816,010.40x = 1,207,224,015.60 × 287,830,205.60
  4. Step 4: Simplify right side
    804,816,010.40x = 347,475,536,615,405,632
  5. Step 5: Solve for x
    x = 347,475,536,615,405,632/804,816,010.40
  6. Step 6: Final answer
    x = 431,745,308.40

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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.