Home / 256,236,567.80-384,354,851.70-253,847,780.60

Finding the Fourth Proportional to 256,236,567.80, 384,354,851.70 and 253,847,780.60

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Solution

The fourth proportional to 256,236,567.80, 384,354,851.70 and 253,847,780.60 is: 380,771,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,236,567.80 : 384,354,851.70 = 253,847,780.60 : x
  2. Step 2: Convert to fraction form
    256,236,567.80/384,354,851.70 = 253,847,780.60/x
  3. Step 3: Cross multiply
    256,236,567.80x = 384,354,851.70 × 253,847,780.60
  4. Step 4: Simplify right side
    256,236,567.80x = 97,567,626,066,887,136
  5. Step 5: Solve for x
    x = 97,567,626,066,887,136/256,236,567.80
  6. Step 6: Final answer
    x = 380,771,670.90

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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.