Home / 1,286,253,256.80-1,929,391,549.20-366,129,233.76

Finding the Fourth Proportional to 1,286,253,256.80, 1,929,391,549.20 and 366,129,233.76

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Solution

The fourth proportional to 1,286,253,256.80, 1,929,391,549.20 and 366,129,233.76 is: 549,197,170.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,253,256.80 : 1,929,391,549.20 = 366,129,233.76 : x
  2. Step 2: Convert to fraction form
    1,286,253,256.80/1,929,391,549.20 = 366,129,233.76/x
  3. Step 3: Cross multiply
    1,286,253,256.80x = 1,929,391,549.20 × 366,129,233.76
  4. Step 4: Simplify right side
    1,286,253,256.80x = 706,406,649,531,615,360
  5. Step 5: Solve for x
    x = 706,406,649,531,615,360/1,286,253,256.80
  6. Step 6: Final answer
    x = 549,197,170.77

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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.