Home / 145,383,748.90-218,075,623.35-87,988,120.90

Finding the Fourth Proportional to 145,383,748.90, 218,075,623.35 and 87,988,120.90

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Solution

The fourth proportional to 145,383,748.90, 218,075,623.35 and 87,988,120.90 is: 131,982,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,383,748.90 : 218,075,623.35 = 87,988,120.90 : x
  2. Step 2: Convert to fraction form
    145,383,748.90/218,075,623.35 = 87,988,120.90/x
  3. Step 3: Cross multiply
    145,383,748.90x = 218,075,623.35 × 87,988,120.90
  4. Step 4: Simplify right side
    145,383,748.90x = 19,188,064,312,662,664
  5. Step 5: Solve for x
    x = 19,188,064,312,662,664/145,383,748.90
  6. Step 6: Final answer
    x = 131,982,181.35

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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.