Home / 827,012,699.10-1,239,768,203.69-412,616,264.94

Finding the Fourth Proportional to 827,012,699.10, 1,239,768,203.69 and 412,616,264.94

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Solution

The fourth proportional to 827,012,699.10, 1,239,768,203.69 and 412,616,264.94 is: 618,549,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,012,699.10 : 1,239,768,203.69 = 412,616,264.94 : x
  2. Step 2: Convert to fraction form
    827,012,699.10/1,239,768,203.69 = 412,616,264.94/x
  3. Step 3: Cross multiply
    827,012,699.10x = 1,239,768,203.69 × 412,616,264.94
  4. Step 4: Simplify right side
    827,012,699.10x = 511,548,525,595,877,824
  5. Step 5: Solve for x
    x = 511,548,525,595,877,824/827,012,699.10
  6. Step 6: Final answer
    x = 618,549,783.04

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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.