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Finding the Fourth Proportional to 442,908,019.20, 664,362,028.80 and 184,627,693.20

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Solution

The fourth proportional to 442,908,019.20, 664,362,028.80 and 184,627,693.20 is: 276,941,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,908,019.20 : 664,362,028.80 = 184,627,693.20 : x
  2. Step 2: Convert to fraction form
    442,908,019.20/664,362,028.80 = 184,627,693.20/x
  3. Step 3: Cross multiply
    442,908,019.20x = 664,362,028.80 × 184,627,693.20
  4. Step 4: Simplify right side
    442,908,019.20x = 122,659,628,827,015,952
  5. Step 5: Solve for x
    x = 122,659,628,827,015,952/442,908,019.20
  6. Step 6: Final answer
    x = 276,941,539.80

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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.