Home / 217,516,817.36-300,138,085.32-124,680,242

Finding the Fourth Proportional to 217,516,817.36, 300,138,085.32 and 124,680,242

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Solution

The fourth proportional to 217,516,817.36, 300,138,085.32 and 124,680,242 is: 172,038,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,516,817.36 : 300,138,085.32 = 124,680,242 : x
  2. Step 2: Convert to fraction form
    217,516,817.36/300,138,085.32 = 124,680,242/x
  3. Step 3: Cross multiply
    217,516,817.36x = 300,138,085.32 × 124,680,242
  4. Step 4: Simplify right side
    217,516,817.36x = 37,421,289,111,114,248
  5. Step 5: Solve for x
    x = 37,421,289,111,114,248/217,516,817.36
  6. Step 6: Final answer
    x = 172,038,601.73

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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.