Home / 281,097,967.80-421,087,079.70-247,430,998.20

Finding the Fourth Proportional to 281,097,967.80, 421,087,079.70 and 247,430,998.20

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Solution

The fourth proportional to 281,097,967.80, 421,087,079.70 and 247,430,998.20 is: 370,653,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,097,967.80 : 421,087,079.70 = 247,430,998.20 : x
  2. Step 2: Convert to fraction form
    281,097,967.80/421,087,079.70 = 247,430,998.20/x
  3. Step 3: Cross multiply
    281,097,967.80x = 421,087,079.70 × 247,430,998.20
  4. Step 4: Simplify right side
    281,097,967.80x = 104,189,996,459,293,952
  5. Step 5: Solve for x
    x = 104,189,996,459,293,952/281,097,967.80
  6. Step 6: Final answer
    x = 370,653,680.90

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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.