Home / 402,421,994.56-603,632,238.40-126,094,362.90

Finding the Fourth Proportional to 402,421,994.56, 603,632,238.40 and 126,094,362.90

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Solution

The fourth proportional to 402,421,994.56, 603,632,238.40 and 126,094,362.90 is: 189,141,308.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,421,994.56 : 603,632,238.40 = 126,094,362.90 : x
  2. Step 2: Convert to fraction form
    402,421,994.56/603,632,238.40 = 126,094,362.90/x
  3. Step 3: Cross multiply
    402,421,994.56x = 603,632,238.40 × 126,094,362.90
  4. Step 4: Simplify right side
    402,421,994.56x = 76,114,622,526,948,912
  5. Step 5: Solve for x
    x = 76,114,622,526,948,912/402,421,994.56
  6. Step 6: Final answer
    x = 189,141,308.27

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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.