Home / 281,291,801.81-421,953,645.94-87,230,806.25

Finding the Fourth Proportional to 281,291,801.81, 421,953,645.94 and 87,230,806.25

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Solution

The fourth proportional to 281,291,801.81, 421,953,645.94 and 87,230,806.25 is: 130,851,153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,291,801.81 : 421,953,645.94 = 87,230,806.25 : x
  2. Step 2: Convert to fraction form
    281,291,801.81/421,953,645.94 = 87,230,806.25/x
  3. Step 3: Cross multiply
    281,291,801.81x = 421,953,645.94 × 87,230,806.25
  4. Step 4: Simplify right side
    281,291,801.81x = 36,807,356,733,145,392
  5. Step 5: Solve for x
    x = 36,807,356,733,145,392/281,291,801.81
  6. Step 6: Final answer
    x = 130,851,153.49

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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.