Home / 218,188,429.95-338,779,131.54

Finding the Third Proportional to 218,188,429.95 and 338,779,131.54

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Solution

The third proportional to 218,188,429.95 and 338,779,131.54 is: 526,019,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,188,429.95 : 338,779,131.54 = 338,779,131.54 : x
  2. Step 2: Convert to fraction form
    218,188,429.95/338,779,131.54 = 338,779,131.54/x
  3. Step 3: Cross multiply
    218,188,429.95x = 338,779,131.54 × 338,779,131.54
  4. Step 4: Simplify right side
    218,188,429.95x = 114,771,299,966,373,280
  5. Step 5: Solve for x
    x = 114,771,299,966,373,280/218,188,429.95
  6. Step 6: Final answer
    x = 526,019,184.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.