Home / 85,536,019.20-128,304,028.80-28,030,166.40

Finding the Fourth Proportional to 85,536,019.20, 128,304,028.80 and 28,030,166.40

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Solution

The fourth proportional to 85,536,019.20, 128,304,028.80 and 28,030,166.40 is: 42,045,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,019.20 : 128,304,028.80 = 28,030,166.40 : x
  2. Step 2: Convert to fraction form
    85,536,019.20/128,304,028.80 = 28,030,166.40/x
  3. Step 3: Cross multiply
    85,536,019.20x = 128,304,028.80 × 28,030,166.40
  4. Step 4: Simplify right side
    85,536,019.20x = 3,596,383,277,054,392
  5. Step 5: Solve for x
    x = 3,596,383,277,054,392/85,536,019.20
  6. Step 6: Final answer
    x = 42,045,249.60

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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.