Home / 172,725,978.95-259,318,814.73-90,902,317.67

Finding the Fourth Proportional to 172,725,978.95, 259,318,814.73 and 90,902,317.67

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Solution

The fourth proportional to 172,725,978.95, 259,318,814.73 and 90,902,317.67 is: 136,474,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,725,978.95 : 259,318,814.73 = 90,902,317.67 : x
  2. Step 2: Convert to fraction form
    172,725,978.95/259,318,814.73 = 90,902,317.67/x
  3. Step 3: Cross multiply
    172,725,978.95x = 259,318,814.73 × 90,902,317.67
  4. Step 4: Simplify right side
    172,725,978.95x = 23,572,681,274,394,336
  5. Step 5: Solve for x
    x = 23,572,681,274,394,336/172,725,978.95
  6. Step 6: Final answer
    x = 136,474,440.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.