Home / 87,638,966.69-131,470,412.72-36,509,028.08

Finding the Fourth Proportional to 87,638,966.69, 131,470,412.72 and 36,509,028.08

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Solution

The fourth proportional to 87,638,966.69, 131,470,412.72 and 36,509,028.08 is: 54,768,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,638,966.69 : 131,470,412.72 = 36,509,028.08 : x
  2. Step 2: Convert to fraction form
    87,638,966.69/131,470,412.72 = 36,509,028.08/x
  3. Step 3: Cross multiply
    87,638,966.69x = 131,470,412.72 × 36,509,028.08
  4. Step 4: Simplify right side
    87,638,966.69x = 4,799,856,988,843,772
  5. Step 5: Solve for x
    x = 4,799,856,988,843,772/87,638,966.69
  6. Step 6: Final answer
    x = 54,768,525.58

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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.