Home / 154,660,408.84-213,436,842.90-85,051,086.28

Finding the Fourth Proportional to 154,660,408.84, 213,436,842.90 and 85,051,086.28

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Solution

The fourth proportional to 154,660,408.84, 213,436,842.90 and 85,051,086.28 is: 117,373,511.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,660,408.84 : 213,436,842.90 = 85,051,086.28 : x
  2. Step 2: Convert to fraction form
    154,660,408.84/213,436,842.90 = 85,051,086.28/x
  3. Step 3: Cross multiply
    154,660,408.84x = 213,436,842.90 × 85,051,086.28
  4. Step 4: Simplify right side
    154,660,408.84x = 18,153,035,340,818,708
  5. Step 5: Solve for x
    x = 18,153,035,340,818,708/154,660,408.84
  6. Step 6: Final answer
    x = 117,373,511.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.