Home / 402,193,842.56-603,274,343.48-139,938,418.88

Finding the Fourth Proportional to 402,193,842.56, 603,274,343.48 and 139,938,418.88

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Solution

The fourth proportional to 402,193,842.56, 603,274,343.48 and 139,938,418.88 is: 209,901,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,193,842.56 : 603,274,343.48 = 139,938,418.88 : x
  2. Step 2: Convert to fraction form
    402,193,842.56/603,274,343.48 = 139,938,418.88/x
  3. Step 3: Cross multiply
    402,193,842.56x = 603,274,343.48 × 139,938,418.88
  4. Step 4: Simplify right side
    402,193,842.56x = 84,421,257,777,461,232
  5. Step 5: Solve for x
    x = 84,421,257,777,461,232/402,193,842.56
  6. Step 6: Final answer
    x = 209,901,915.06

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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.