Home / 893,616,010.80-1,340,424,016.20-618,116,996.40

Finding the Fourth Proportional to 893,616,010.80, 1,340,424,016.20 and 618,116,996.40

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Solution

The fourth proportional to 893,616,010.80, 1,340,424,016.20 and 618,116,996.40 is: 927,175,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,616,010.80 : 1,340,424,016.20 = 618,116,996.40 : x
  2. Step 2: Convert to fraction form
    893,616,010.80/1,340,424,016.20 = 618,116,996.40/x
  3. Step 3: Cross multiply
    893,616,010.80x = 1,340,424,016.20 × 618,116,996.40
  4. Step 4: Simplify right side
    893,616,010.80x = 828,538,866,795,968,896
  5. Step 5: Solve for x
    x = 828,538,866,795,968,896/893,616,010.80
  6. Step 6: Final answer
    x = 927,175,494.60

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1.5x scale

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.