Home / 305,685,485.64-421,852,829.22-173,514,031.56

Finding the Fourth Proportional to 305,685,485.64, 421,852,829.22 and 173,514,031.56

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Solution

The fourth proportional to 305,685,485.64, 421,852,829.22 and 173,514,031.56 is: 239,453,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,685,485.64 : 421,852,829.22 = 173,514,031.56 : x
  2. Step 2: Convert to fraction form
    305,685,485.64/421,852,829.22 = 173,514,031.56/x
  3. Step 3: Cross multiply
    305,685,485.64x = 421,852,829.22 × 173,514,031.56
  4. Step 4: Simplify right side
    305,685,485.64x = 73,197,385,122,954,384
  5. Step 5: Solve for x
    x = 73,197,385,122,954,384/305,685,485.64
  6. Step 6: Final answer
    x = 239,453,256.90

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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.