Home / 281,097,968.80-421,087,081.20-247,430,999.20

Finding the Fourth Proportional to 281,097,968.80, 421,087,081.20 and 247,430,999.20

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Solution

The fourth proportional to 281,097,968.80, 421,087,081.20 and 247,430,999.20 is: 370,653,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,097,968.80 : 421,087,081.20 = 247,430,999.20 : x
  2. Step 2: Convert to fraction form
    281,097,968.80/421,087,081.20 = 247,430,999.20/x
  3. Step 3: Cross multiply
    281,097,968.80x = 421,087,081.20 × 247,430,999.20
  4. Step 4: Simplify right side
    281,097,968.80x = 104,189,997,251,527,520
  5. Step 5: Solve for x
    x = 104,189,997,251,527,520/281,097,968.80
  6. Step 6: Final answer
    x = 370,653,682.40

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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.