Home / 451,215,321-676,825,317.08-205,400,047.36

Finding the Fourth Proportional to 451,215,321, 676,825,317.08 and 205,400,047.36

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Solution

The fourth proportional to 451,215,321, 676,825,317.08 and 205,400,047.36 is: 308,101,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,215,321 : 676,825,317.08 = 205,400,047.36 : x
  2. Step 2: Convert to fraction form
    451,215,321/676,825,317.08 = 205,400,047.36/x
  3. Step 3: Cross multiply
    451,215,321x = 676,825,317.08 × 205,400,047.36
  4. Step 4: Simplify right side
    451,215,321x = 139,019,952,182,679,040
  5. Step 5: Solve for x
    x = 139,019,952,182,679,040/451,215,321
  6. Step 6: Final answer
    x = 308,101,134.23

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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.