Home / 256,236,566.80-384,354,850.20-253,847,779.60

Finding the Fourth Proportional to 256,236,566.80, 384,354,850.20 and 253,847,779.60

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Solution

The fourth proportional to 256,236,566.80, 384,354,850.20 and 253,847,779.60 is: 380,771,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,236,566.80 : 384,354,850.20 = 253,847,779.60 : x
  2. Step 2: Convert to fraction form
    256,236,566.80/384,354,850.20 = 253,847,779.60/x
  3. Step 3: Cross multiply
    256,236,566.80x = 384,354,850.20 × 253,847,779.60
  4. Step 4: Simplify right side
    256,236,566.80x = 97,567,625,301,760,608
  5. Step 5: Solve for x
    x = 97,567,625,301,760,608/256,236,566.80
  6. Step 6: Final answer
    x = 380,771,669.40

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1.5x scale

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.