Home / 440,122,406.70-660,183,610.05-210,539,894.70

Finding the Fourth Proportional to 440,122,406.70, 660,183,610.05 and 210,539,894.70

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Solution

The fourth proportional to 440,122,406.70, 660,183,610.05 and 210,539,894.70 is: 315,809,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,122,406.70 : 660,183,610.05 = 210,539,894.70 : x
  2. Step 2: Convert to fraction form
    440,122,406.70/660,183,610.05 = 210,539,894.70/x
  3. Step 3: Cross multiply
    440,122,406.70x = 660,183,610.05 × 210,539,894.70
  4. Step 4: Simplify right side
    440,122,406.70x = 138,994,987,742,592,848
  5. Step 5: Solve for x
    x = 138,994,987,742,592,848/440,122,406.70
  6. Step 6: Final answer
    x = 315,809,842.05

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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.