Home / 970,223,999.20-1,455,335,998.80-388,237,055.20

Finding the Fourth Proportional to 970,223,999.20, 1,455,335,998.80 and 388,237,055.20

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Solution

The fourth proportional to 970,223,999.20, 1,455,335,998.80 and 388,237,055.20 is: 582,355,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,223,999.20 : 1,455,335,998.80 = 388,237,055.20 : x
  2. Step 2: Convert to fraction form
    970,223,999.20/1,455,335,998.80 = 388,237,055.20/x
  3. Step 3: Cross multiply
    970,223,999.20x = 1,455,335,998.80 × 388,237,055.20
  4. Step 4: Simplify right side
    970,223,999.20x = 565,015,362,500,662,720
  5. Step 5: Solve for x
    x = 565,015,362,500,662,720/970,223,999.20
  6. Step 6: Final answer
    x = 582,355,582.80

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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.