Home / 347,712,478.44-479,643,409.38-217,105,538.28

Finding the Fourth Proportional to 347,712,478.44, 479,643,409.38 and 217,105,538.28

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Solution

The fourth proportional to 347,712,478.44, 479,643,409.38 and 217,105,538.28 is: 299,480,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,712,478.44 : 479,643,409.38 = 217,105,538.28 : x
  2. Step 2: Convert to fraction form
    347,712,478.44/479,643,409.38 = 217,105,538.28/x
  3. Step 3: Cross multiply
    347,712,478.44x = 479,643,409.38 × 217,105,538.28
  4. Step 4: Simplify right side
    347,712,478.44x = 104,133,240,575,899,296
  5. Step 5: Solve for x
    x = 104,133,240,575,899,296/347,712,478.44
  6. Step 6: Final answer
    x = 299,480,884.45

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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.