Home / 281,285,999.10-421,928,998.65-99,551,547.90

Finding the Fourth Proportional to 281,285,999.10, 421,928,998.65 and 99,551,547.90

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Solution

The fourth proportional to 281,285,999.10, 421,928,998.65 and 99,551,547.90 is: 149,327,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,285,999.10 : 421,928,998.65 = 99,551,547.90 : x
  2. Step 2: Convert to fraction form
    281,285,999.10/421,928,998.65 = 99,551,547.90/x
  3. Step 3: Cross multiply
    281,285,999.10x = 421,928,998.65 × 99,551,547.90
  4. Step 4: Simplify right side
    281,285,999.10x = 42,003,684,919,504,512
  5. Step 5: Solve for x
    x = 42,003,684,919,504,512/281,285,999.10
  6. Step 6: Final answer
    x = 149,327,321.85

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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.