Home / 198,746,743.72-297,289,741.64-139,654,984.08

Finding the Fourth Proportional to 198,746,743.72, 297,289,741.64 and 139,654,984.08

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Solution

The fourth proportional to 198,746,743.72, 297,289,741.64 and 139,654,984.08 is: 208,898,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,746,743.72 : 297,289,741.64 = 139,654,984.08 : x
  2. Step 2: Convert to fraction form
    198,746,743.72/297,289,741.64 = 139,654,984.08/x
  3. Step 3: Cross multiply
    198,746,743.72x = 297,289,741.64 × 139,654,984.08
  4. Step 4: Simplify right side
    198,746,743.72x = 41,517,994,135,881,512
  5. Step 5: Solve for x
    x = 41,517,994,135,881,512/198,746,743.72
  6. Step 6: Final answer
    x = 208,898,990.54

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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.