Home / 631,179,478.84-871,028,860.90-352,721,002.68

Finding the Fourth Proportional to 631,179,478.84, 871,028,860.90 and 352,721,002.68

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Solution

The fourth proportional to 631,179,478.84, 871,028,860.90 and 352,721,002.68 is: 486,755,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,179,478.84 : 871,028,860.90 = 352,721,002.68 : x
  2. Step 2: Convert to fraction form
    631,179,478.84/871,028,860.90 = 352,721,002.68/x
  3. Step 3: Cross multiply
    631,179,478.84x = 871,028,860.90 × 352,721,002.68
  4. Step 4: Simplify right side
    631,179,478.84x = 307,230,173,179,866,240
  5. Step 5: Solve for x
    x = 307,230,173,179,866,240/631,179,478.84
  6. Step 6: Final answer
    x = 486,755,643.17

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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.