Home / 172,874,390.74-259,312,025.33-70,638,428.36

Finding the Fourth Proportional to 172,874,390.74, 259,312,025.33 and 70,638,428.36

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Solution

The fourth proportional to 172,874,390.74, 259,312,025.33 and 70,638,428.36 is: 105,957,822.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,874,390.74 : 259,312,025.33 = 70,638,428.36 : x
  2. Step 2: Convert to fraction form
    172,874,390.74/259,312,025.33 = 70,638,428.36/x
  3. Step 3: Cross multiply
    172,874,390.74x = 259,312,025.33 × 70,638,428.36
  4. Step 4: Simplify right side
    172,874,390.74x = 18,317,393,924,719,692
  5. Step 5: Solve for x
    x = 18,317,393,924,719,692/172,874,390.74
  6. Step 6: Final answer
    x = 105,957,822.02

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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.