Home / 281,058,357.96-387,860,477.22-157,299,021.72

Finding the Fourth Proportional to 281,058,357.96, 387,860,477.22 and 157,299,021.72

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Solution

The fourth proportional to 281,058,357.96, 387,860,477.22 and 157,299,021.72 is: 217,072,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,058,357.96 : 387,860,477.22 = 157,299,021.72 : x
  2. Step 2: Convert to fraction form
    281,058,357.96/387,860,477.22 = 157,299,021.72/x
  3. Step 3: Cross multiply
    281,058,357.96x = 387,860,477.22 × 157,299,021.72
  4. Step 4: Simplify right side
    281,058,357.96x = 61,010,073,630,558,352
  5. Step 5: Solve for x
    x = 61,010,073,630,558,352/281,058,357.96
  6. Step 6: Final answer
    x = 217,072,618.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.