Home / 309,995,272.26-465,050,120.31-128,256,622.02

Finding the Fourth Proportional to 309,995,272.26, 465,050,120.31 and 128,256,622.02

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Solution

The fourth proportional to 309,995,272.26, 465,050,120.31 and 128,256,622.02 is: 192,408,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,995,272.26 : 465,050,120.31 = 128,256,622.02 : x
  2. Step 2: Convert to fraction form
    309,995,272.26/465,050,120.31 = 128,256,622.02/x
  3. Step 3: Cross multiply
    309,995,272.26x = 465,050,120.31 × 128,256,622.02
  4. Step 4: Simplify right side
    309,995,272.26x = 59,645,757,500,955,192
  5. Step 5: Solve for x
    x = 59,645,757,500,955,192/309,995,272.26
  6. Step 6: Final answer
    x = 192,408,603.74

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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.