Home / 389,612,608.20-584,418,912.30-354,466,643.40

Finding the Fourth Proportional to 389,612,608.20, 584,418,912.30 and 354,466,643.40

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Solution

The fourth proportional to 389,612,608.20, 584,418,912.30 and 354,466,643.40 is: 531,699,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,612,608.20 : 584,418,912.30 = 354,466,643.40 : x
  2. Step 2: Convert to fraction form
    389,612,608.20/584,418,912.30 = 354,466,643.40/x
  3. Step 3: Cross multiply
    389,612,608.20x = 584,418,912.30 × 354,466,643.40
  4. Step 4: Simplify right side
    389,612,608.20x = 207,157,010,182,459,936
  5. Step 5: Solve for x
    x = 207,157,010,182,459,936/389,612,608.20
  6. Step 6: Final answer
    x = 531,699,965.10

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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.