Home / 217,243,430.40-326,243,059.20-115,206,758.40

Finding the Fourth Proportional to 217,243,430.40, 326,243,059.20 and 115,206,758.40

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Solution

The fourth proportional to 217,243,430.40, 326,243,059.20 and 115,206,758.40 is: 173,010,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,243,430.40 : 326,243,059.20 = 115,206,758.40 : x
  2. Step 2: Convert to fraction form
    217,243,430.40/326,243,059.20 = 115,206,758.40/x
  3. Step 3: Cross multiply
    217,243,430.40x = 326,243,059.20 × 115,206,758.40
  4. Step 4: Simplify right side
    217,243,430.40x = 37,585,405,300,931,296
  5. Step 5: Solve for x
    x = 37,585,405,300,931,296/217,243,430.40
  6. Step 6: Final answer
    x = 173,010,549.65

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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.