Home / 604,324,861.20-906,487,291.80-420,658,851.60

Finding the Fourth Proportional to 604,324,861.20, 906,487,291.80 and 420,658,851.60

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Solution

The fourth proportional to 604,324,861.20, 906,487,291.80 and 420,658,851.60 is: 630,988,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,324,861.20 : 906,487,291.80 = 420,658,851.60 : x
  2. Step 2: Convert to fraction form
    604,324,861.20/906,487,291.80 = 420,658,851.60/x
  3. Step 3: Cross multiply
    604,324,861.20x = 906,487,291.80 × 420,658,851.60
  4. Step 4: Simplify right side
    604,324,861.20x = 381,321,903,158,582,080
  5. Step 5: Solve for x
    x = 381,321,903,158,582,080/604,324,861.20
  6. Step 6: Final answer
    x = 630,988,277.40

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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.