Home / 216,116,628.78-324,304,051.58-198,533,577.20

Finding the Fourth Proportional to 216,116,628.78, 324,304,051.58 and 198,533,577.20

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Solution

The fourth proportional to 216,116,628.78, 324,304,051.58 and 198,533,577.20 is: 297,918,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,116,628.78 : 324,304,051.58 = 198,533,577.20 : x
  2. Step 2: Convert to fraction form
    216,116,628.78/324,304,051.58 = 198,533,577.20/x
  3. Step 3: Cross multiply
    216,116,628.78x = 324,304,051.58 × 198,533,577.20
  4. Step 4: Simplify right side
    216,116,628.78x = 64,385,243,458,761,024
  5. Step 5: Solve for x
    x = 64,385,243,458,761,024/216,116,628.78
  6. Step 6: Final answer
    x = 297,918,970.05

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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.