Home / 221,315,407.40-331,973,111.10-214,938,115.40

Finding the Fourth Proportional to 221,315,407.40, 331,973,111.10 and 214,938,115.40

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Solution

The fourth proportional to 221,315,407.40, 331,973,111.10 and 214,938,115.40 is: 322,407,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,315,407.40 : 331,973,111.10 = 214,938,115.40 : x
  2. Step 2: Convert to fraction form
    221,315,407.40/331,973,111.10 = 214,938,115.40/x
  3. Step 3: Cross multiply
    221,315,407.40x = 331,973,111.10 × 214,938,115.40
  4. Step 4: Simplify right side
    221,315,407.40x = 71,353,674,863,308,832
  5. Step 5: Solve for x
    x = 71,353,674,863,308,832/221,315,407.40
  6. Step 6: Final answer
    x = 322,407,173.10

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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.