Home / 352,343,412.40-528,515,118.60-261,644,148.40

Finding the Fourth Proportional to 352,343,412.40, 528,515,118.60 and 261,644,148.40

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Solution

The fourth proportional to 352,343,412.40, 528,515,118.60 and 261,644,148.40 is: 392,466,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,343,412.40 : 528,515,118.60 = 261,644,148.40 : x
  2. Step 2: Convert to fraction form
    352,343,412.40/528,515,118.60 = 261,644,148.40/x
  3. Step 3: Cross multiply
    352,343,412.40x = 528,515,118.60 × 261,644,148.40
  4. Step 4: Simplify right side
    352,343,412.40x = 138,282,888,122,622,016
  5. Step 5: Solve for x
    x = 138,282,888,122,622,016/352,343,412.40
  6. Step 6: Final answer
    x = 392,466,222.60

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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.