Home / 298,934,085.60-448,401,128.40-137,376,021.60

Finding the Fourth Proportional to 298,934,085.60, 448,401,128.40 and 137,376,021.60

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Solution

The fourth proportional to 298,934,085.60, 448,401,128.40 and 137,376,021.60 is: 206,064,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,934,085.60 : 448,401,128.40 = 137,376,021.60 : x
  2. Step 2: Convert to fraction form
    298,934,085.60/448,401,128.40 = 137,376,021.60/x
  3. Step 3: Cross multiply
    298,934,085.60x = 448,401,128.40 × 137,376,021.60
  4. Step 4: Simplify right side
    298,934,085.60x = 61,599,563,100,542,768
  5. Step 5: Solve for x
    x = 61,599,563,100,542,768/298,934,085.60
  6. Step 6: Final answer
    x = 206,064,032.40

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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.