Home / 648,238,088.22-972,511,822.22-211,539,584.86

Finding the Fourth Proportional to 648,238,088.22, 972,511,822.22 and 211,539,584.86

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Solution

The fourth proportional to 648,238,088.22, 972,511,822.22 and 211,539,584.86 is: 317,359,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,238,088.22 : 972,511,822.22 = 211,539,584.86 : x
  2. Step 2: Convert to fraction form
    648,238,088.22/972,511,822.22 = 211,539,584.86/x
  3. Step 3: Cross multiply
    648,238,088.22x = 972,511,822.22 × 211,539,584.86
  4. Step 4: Simplify right side
    648,238,088.22x = 205,724,747,143,860,928
  5. Step 5: Solve for x
    x = 205,724,747,143,860,928/648,238,088.22
  6. Step 6: Final answer
    x = 317,359,857.25

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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.