Home / 298,557,375.40-448,035,128.70-136,916,108.20

Finding the Fourth Proportional to 298,557,375.40, 448,035,128.70 and 136,916,108.20

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Solution

The fourth proportional to 298,557,375.40, 448,035,128.70 and 136,916,108.20 is: 205,465,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,557,375.40 : 448,035,128.70 = 136,916,108.20 : x
  2. Step 2: Convert to fraction form
    298,557,375.40/448,035,128.70 = 136,916,108.20/x
  3. Step 3: Cross multiply
    298,557,375.40x = 448,035,128.70 × 136,916,108.20
  4. Step 4: Simplify right side
    298,557,375.40x = 61,343,226,158,490,120
  5. Step 5: Solve for x
    x = 61,343,226,158,490,120/298,557,375.40
  6. Step 6: Final answer
    x = 205,465,452.25

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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.