Home / 619,362,885.41-854,285,624.52-407,602,247.21

Finding the Fourth Proportional to 619,362,885.41, 854,285,624.52 and 407,602,247.21

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Solution

The fourth proportional to 619,362,885.41, 854,285,624.52 and 407,602,247.21 is: 562,204,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,362,885.41 : 854,285,624.52 = 407,602,247.21 : x
  2. Step 2: Convert to fraction form
    619,362,885.41/854,285,624.52 = 407,602,247.21/x
  3. Step 3: Cross multiply
    619,362,885.41x = 854,285,624.52 × 407,602,247.21
  4. Step 4: Simplify right side
    619,362,885.41x = 348,208,740,309,278,848
  5. Step 5: Solve for x
    x = 348,208,740,309,278,848/619,362,885.41
  6. Step 6: Final answer
    x = 562,204,724.43

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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.