Home / 201,582,389.40-302,429,571.30-86,622,005.40

Finding the Fourth Proportional to 201,582,389.40, 302,429,571.30 and 86,622,005.40

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Solution

The fourth proportional to 201,582,389.40, 302,429,571.30 and 86,622,005.40 is: 129,957,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,582,389.40 : 302,429,571.30 = 86,622,005.40 : x
  2. Step 2: Convert to fraction form
    201,582,389.40/302,429,571.30 = 86,622,005.40/x
  3. Step 3: Cross multiply
    201,582,389.40x = 302,429,571.30 × 86,622,005.40
  4. Step 4: Simplify right side
    201,582,389.40x = 26,197,055,958,268,288
  5. Step 5: Solve for x
    x = 26,197,055,958,268,288/201,582,389.40
  6. Step 6: Final answer
    x = 129,957,066.37

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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.