Home / 288,747,576.81-398,488,509.23-163,310,893.25

Finding the Fourth Proportional to 288,747,576.81, 398,488,509.23 and 163,310,893.25

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Solution

The fourth proportional to 288,747,576.81, 398,488,509.23 and 163,310,893.25 is: 225,378,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747,576.81 : 398,488,509.23 = 163,310,893.25 : x
  2. Step 2: Convert to fraction form
    288,747,576.81/398,488,509.23 = 163,310,893.25/x
  3. Step 3: Cross multiply
    288,747,576.81x = 398,488,509.23 × 163,310,893.25
  4. Step 4: Simplify right side
    288,747,576.81x = 65,077,514,389,403,176
  5. Step 5: Solve for x
    x = 65,077,514,389,403,176/288,747,576.81
  6. Step 6: Final answer
    x = 225,378,564.59

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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.