Home / 465,196,878.88-641,975,938.40-256,360,514.56

Finding the Fourth Proportional to 465,196,878.88, 641,975,938.40 and 256,360,514.56

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Solution

The fourth proportional to 465,196,878.88, 641,975,938.40 and 256,360,514.56 is: 353,779,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,196,878.88 : 641,975,938.40 = 256,360,514.56 : x
  2. Step 2: Convert to fraction form
    465,196,878.88/641,975,938.40 = 256,360,514.56/x
  3. Step 3: Cross multiply
    465,196,878.88x = 641,975,938.40 × 256,360,514.56
  4. Step 4: Simplify right side
    465,196,878.88x = 164,577,281,903,362,848
  5. Step 5: Solve for x
    x = 164,577,281,903,362,848/465,196,878.88
  6. Step 6: Final answer
    x = 353,779,849.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.