Home / 320,019,116.30-480,028,674.45-216,706,985.90

Finding the Fourth Proportional to 320,019,116.30, 480,028,674.45 and 216,706,985.90

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Solution

The fourth proportional to 320,019,116.30, 480,028,674.45 and 216,706,985.90 is: 325,060,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,019,116.30 : 480,028,674.45 = 216,706,985.90 : x
  2. Step 2: Convert to fraction form
    320,019,116.30/480,028,674.45 = 216,706,985.90/x
  3. Step 3: Cross multiply
    320,019,116.30x = 480,028,674.45 × 216,706,985.90
  4. Step 4: Simplify right side
    320,019,116.30x = 104,025,567,185,631,840
  5. Step 5: Solve for x
    x = 104,025,567,185,631,840/320,019,116.30
  6. Step 6: Final answer
    x = 325,060,478.85

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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.