Home / 216,364,904.11-324,549,849.33-78,201,004.15

Finding the Fourth Proportional to 216,364,904.11, 324,549,849.33 and 78,201,004.15

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Solution

The fourth proportional to 216,364,904.11, 324,549,849.33 and 78,201,004.15 is: 117,302,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,364,904.11 : 324,549,849.33 = 78,201,004.15 : x
  2. Step 2: Convert to fraction form
    216,364,904.11/324,549,849.33 = 78,201,004.15/x
  3. Step 3: Cross multiply
    216,364,904.11x = 324,549,849.33 × 78,201,004.15
  4. Step 4: Simplify right side
    216,364,904.11x = 25,380,124,114,742,892
  5. Step 5: Solve for x
    x = 25,380,124,114,742,892/216,364,904.11
  6. Step 6: Final answer
    x = 117,302,407.33

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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.