Home / 253,208,982.30-379,760,328.63-71,413,645.02

Finding the Fourth Proportional to 253,208,982.30, 379,760,328.63 and 71,413,645.02

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Solution

The fourth proportional to 253,208,982.30, 379,760,328.63 and 71,413,645.02 is: 107,105,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,208,982.30 : 379,760,328.63 = 71,413,645.02 : x
  2. Step 2: Convert to fraction form
    253,208,982.30/379,760,328.63 = 71,413,645.02/x
  3. Step 3: Cross multiply
    253,208,982.30x = 379,760,328.63 × 71,413,645.02
  4. Step 4: Simplify right side
    253,208,982.30x = 27,120,069,301,461,360
  5. Step 5: Solve for x
    x = 27,120,069,301,461,360/253,208,982.30
  6. Step 6: Final answer
    x = 107,105,478.86

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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.