Home / 347,747,998.20-521,621,997.30-245,711,326.20

Finding the Fourth Proportional to 347,747,998.20, 521,621,997.30 and 245,711,326.20

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Solution

The fourth proportional to 347,747,998.20, 521,621,997.30 and 245,711,326.20 is: 368,566,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,747,998.20 : 521,621,997.30 = 245,711,326.20 : x
  2. Step 2: Convert to fraction form
    347,747,998.20/521,621,997.30 = 245,711,326.20/x
  3. Step 3: Cross multiply
    347,747,998.20x = 521,621,997.30 × 245,711,326.20
  4. Step 4: Simplify right side
    347,747,998.20x = 128,168,432,731,675,808
  5. Step 5: Solve for x
    x = 128,168,432,731,675,808/347,747,998.20
  6. Step 6: Final answer
    x = 368,566,989.30

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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.