Home / 448,404,013.20-672,606,019.80-275,319,584.40

Finding the Fourth Proportional to 448,404,013.20, 672,606,019.80 and 275,319,584.40

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Solution

The fourth proportional to 448,404,013.20, 672,606,019.80 and 275,319,584.40 is: 412,979,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,404,013.20 : 672,606,019.80 = 275,319,584.40 : x
  2. Step 2: Convert to fraction form
    448,404,013.20/672,606,019.80 = 275,319,584.40/x
  3. Step 3: Cross multiply
    448,404,013.20x = 672,606,019.80 × 275,319,584.40
  4. Step 4: Simplify right side
    448,404,013.20x = 185,181,609,836,274,144
  5. Step 5: Solve for x
    x = 185,181,609,836,274,144/448,404,013.20
  6. Step 6: Final answer
    x = 412,979,376.60

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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.