Home / 945,705,615.40-1,416,169,635.90-620,830,556.20

Finding the Fourth Proportional to 945,705,615.40, 1,416,169,635.90 and 620,830,556.20

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Solution

The fourth proportional to 945,705,615.40, 1,416,169,635.90 and 620,830,556.20 is: 929,677,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,705,615.40 : 1,416,169,635.90 = 620,830,556.20 : x
  2. Step 2: Convert to fraction form
    945,705,615.40/1,416,169,635.90 = 620,830,556.20/x
  3. Step 3: Cross multiply
    945,705,615.40x = 1,416,169,635.90 × 620,830,556.20
  4. Step 4: Simplify right side
    945,705,615.40x = 879,201,382,729,348,608
  5. Step 5: Solve for x
    x = 879,201,382,729,348,608/945,705,615.40
  6. Step 6: Final answer
    x = 929,677,659.11

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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.