Home / 553,941,720.60-764,372,975.58-319,068,768.12

Finding the Fourth Proportional to 553,941,720.60, 764,372,975.58 and 319,068,768.12

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Solution

The fourth proportional to 553,941,720.60, 764,372,975.58 and 319,068,768.12 is: 440,276,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,941,720.60 : 764,372,975.58 = 319,068,768.12 : x
  2. Step 2: Convert to fraction form
    553,941,720.60/764,372,975.58 = 319,068,768.12/x
  3. Step 3: Cross multiply
    553,941,720.60x = 764,372,975.58 × 319,068,768.12
  4. Step 4: Simplify right side
    553,941,720.60x = 243,887,543,702,529,472
  5. Step 5: Solve for x
    x = 243,887,543,702,529,472/553,941,720.60
  6. Step 6: Final answer
    x = 440,276,539.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.