Home / 636,931,618.40-955,397,427.60-206,110,114.40

Finding the Fourth Proportional to 636,931,618.40, 955,397,427.60 and 206,110,114.40

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Solution

The fourth proportional to 636,931,618.40, 955,397,427.60 and 206,110,114.40 is: 309,165,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,931,618.40 : 955,397,427.60 = 206,110,114.40 : x
  2. Step 2: Convert to fraction form
    636,931,618.40/955,397,427.60 = 206,110,114.40/x
  3. Step 3: Cross multiply
    636,931,618.40x = 955,397,427.60 × 206,110,114.40
  4. Step 4: Simplify right side
    636,931,618.40x = 196,917,073,100,101,728
  5. Step 5: Solve for x
    x = 196,917,073,100,101,728/636,931,618.40
  6. Step 6: Final answer
    x = 309,165,171.60

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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.