Home / 383,735,638.32-529,075,268.28-320,247,380.40

Finding the Fourth Proportional to 383,735,638.32, 529,075,268.28 and 320,247,380.40

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Solution

The fourth proportional to 383,735,638.32, 529,075,268.28 and 320,247,380.40 is: 441,540,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,735,638.32 : 529,075,268.28 = 320,247,380.40 : x
  2. Step 2: Convert to fraction form
    383,735,638.32/529,075,268.28 = 320,247,380.40/x
  3. Step 3: Cross multiply
    383,735,638.32x = 529,075,268.28 × 320,247,380.40
  4. Step 4: Simplify right side
    383,735,638.32x = 169,434,968,701,097,184
  5. Step 5: Solve for x
    x = 169,434,968,701,097,184/383,735,638.32
  6. Step 6: Final answer
    x = 441,540,872.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.