Home / 529,392,814.64-730,510,906.20-306,330,001.28

Finding the Fourth Proportional to 529,392,814.64, 730,510,906.20 and 306,330,001.28

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Solution

The fourth proportional to 529,392,814.64, 730,510,906.20 and 306,330,001.28 is: 422,705,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,392,814.64 : 730,510,906.20 = 306,330,001.28 : x
  2. Step 2: Convert to fraction form
    529,392,814.64/730,510,906.20 = 306,330,001.28/x
  3. Step 3: Cross multiply
    529,392,814.64x = 730,510,906.20 × 306,330,001.28
  4. Step 4: Simplify right side
    529,392,814.64x = 223,777,406,831,299,968
  5. Step 5: Solve for x
    x = 223,777,406,831,299,968/529,392,814.64
  6. Step 6: Final answer
    x = 422,705,787.92

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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.