Home / 501,605,670.25-692,217,428.63-278,587,311.48

Finding the Fourth Proportional to 501,605,670.25, 692,217,428.63 and 278,587,311.48

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Solution

The fourth proportional to 501,605,670.25, 692,217,428.63 and 278,587,311.48 is: 384,451,380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,605,670.25 : 692,217,428.63 = 278,587,311.48 : x
  2. Step 2: Convert to fraction form
    501,605,670.25/692,217,428.63 = 278,587,311.48/x
  3. Step 3: Cross multiply
    501,605,670.25x = 692,217,428.63 × 278,587,311.48
  4. Step 4: Simplify right side
    501,605,670.25x = 192,842,992,401,630,496
  5. Step 5: Solve for x
    x = 192,842,992,401,630,496/501,605,670.25
  6. Step 6: Final answer
    x = 384,451,380.51

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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.