Home / 920,348,616.49-1,380,717,048.32-298,515,554.91

Finding the Fourth Proportional to 920,348,616.49, 1,380,717,048.32 and 298,515,554.91

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Solution

The fourth proportional to 920,348,616.49, 1,380,717,048.32 and 298,515,554.91 is: 447,836,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,348,616.49 : 1,380,717,048.32 = 298,515,554.91 : x
  2. Step 2: Convert to fraction form
    920,348,616.49/1,380,717,048.32 = 298,515,554.91/x
  3. Step 3: Cross multiply
    920,348,616.49x = 1,380,717,048.32 × 298,515,554.91
  4. Step 4: Simplify right side
    920,348,616.49x = 412,165,515,852,942,080
  5. Step 5: Solve for x
    x = 412,165,515,852,942,080/920,348,616.49
  6. Step 6: Final answer
    x = 447,836,296.45

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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.