Home / 316,454,340-436,597,699.23-198,988,609.08

Finding the Fourth Proportional to 316,454,340, 436,597,699.23 and 198,988,609.08

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Solution

The fourth proportional to 316,454,340, 436,597,699.23 and 198,988,609.08 is: 274,535,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,454,340 : 436,597,699.23 = 198,988,609.08 : x
  2. Step 2: Convert to fraction form
    316,454,340/436,597,699.23 = 198,988,609.08/x
  3. Step 3: Cross multiply
    316,454,340x = 436,597,699.23 × 198,988,609.08
  4. Step 4: Simplify right side
    316,454,340x = 86,877,968,897,305,904
  5. Step 5: Solve for x
    x = 86,877,968,897,305,904/316,454,340
  6. Step 6: Final answer
    x = 274,535,558.27

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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.