Home / 21,388,828,552.80-32,083,242,829.20-20,481,977,630.40

Finding the Fourth Proportional to 21,388,828,552.80, 32,083,242,829.20 and 20,481,977,630.40

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Solution

The fourth proportional to 21,388,828,552.80, 32,083,242,829.20 and 20,481,977,630.40 is: 30,722,966,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388,828,552.80 : 32,083,242,829.20 = 20,481,977,630.40 : x
  2. Step 2: Convert to fraction form
    21,388,828,552.80/32,083,242,829.20 = 20,481,977,630.40/x
  3. Step 3: Cross multiply
    21,388,828,552.80x = 32,083,242,829.20 × 20,481,977,630.40
  4. Step 4: Simplify right side
    21,388,828,552.80x = 657,128,261,938,365,726,720
  5. Step 5: Solve for x
    x = 657,128,261,938,365,726,720/21,388,828,552.80
  6. Step 6: Final answer
    x = 30,722,966,445.60

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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.