Home / 645,234,116,620.75-967,374,034,773.30-390,206,803,232.30

Finding the Fourth Proportional to 645,234,116,620.75, 967,374,034,773.30 and 390,206,803,232.30

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Solution

The fourth proportional to 645,234,116,620.75, 967,374,034,773.30 and 390,206,803,232.30 is: 585,021,653,250.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,234,116,620.75 : 967,374,034,773.30 = 390,206,803,232.30 : x
  2. Step 2: Convert to fraction form
    645,234,116,620.75/967,374,034,773.30 = 390,206,803,232.30/x
  3. Step 3: Cross multiply
    645,234,116,620.75x = 967,374,034,773.30 × 390,206,803,232.30
  4. Step 4: Simplify right side
    645,234,116,620.75x = 377,475,929,638,821,213,241,344
  5. Step 5: Solve for x
    x = 377,475,929,638,821,213,241,344/645,234,116,620.75
  6. Step 6: Final answer
    x = 585,021,653,250.07

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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.