Home / 421,353,115.20-632,029,672.80-370,334,779.20

Finding the Fourth Proportional to 421,353,115.20, 632,029,672.80 and 370,334,779.20

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Solution

The fourth proportional to 421,353,115.20, 632,029,672.80 and 370,334,779.20 is: 555,502,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,353,115.20 : 632,029,672.80 = 370,334,779.20 : x
  2. Step 2: Convert to fraction form
    421,353,115.20/632,029,672.80 = 370,334,779.20/x
  3. Step 3: Cross multiply
    421,353,115.20x = 632,029,672.80 × 370,334,779.20
  4. Step 4: Simplify right side
    421,353,115.20x = 234,062,569,324,236,224
  5. Step 5: Solve for x
    x = 234,062,569,324,236,224/421,353,115.20
  6. Step 6: Final answer
    x = 555,502,168.80

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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.