Home / 145,383,748.40-218,075,622.60-87,988,120.40

Finding the Fourth Proportional to 145,383,748.40, 218,075,622.60 and 87,988,120.40

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Solution

The fourth proportional to 145,383,748.40, 218,075,622.60 and 87,988,120.40 is: 131,982,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,383,748.40 : 218,075,622.60 = 87,988,120.40 : x
  2. Step 2: Convert to fraction form
    145,383,748.40/218,075,622.60 = 87,988,120.40/x
  3. Step 3: Cross multiply
    145,383,748.40x = 218,075,622.60 × 87,988,120.40
  4. Step 4: Simplify right side
    145,383,748.40x = 19,188,064,137,633,760
  5. Step 5: Solve for x
    x = 19,188,064,137,633,760/145,383,748.40
  6. Step 6: Final answer
    x = 131,982,180.60

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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.