Home / 438,621,990.80-657,932,986.20-180,022,800.20

Finding the Fourth Proportional to 438,621,990.80, 657,932,986.20 and 180,022,800.20

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Solution

The fourth proportional to 438,621,990.80, 657,932,986.20 and 180,022,800.20 is: 270,034,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,621,990.80 : 657,932,986.20 = 180,022,800.20 : x
  2. Step 2: Convert to fraction form
    438,621,990.80/657,932,986.20 = 180,022,800.20/x
  3. Step 3: Cross multiply
    438,621,990.80x = 657,932,986.20 × 180,022,800.20
  4. Step 4: Simplify right side
    438,621,990.80x = 118,442,938,519,671,952
  5. Step 5: Solve for x
    x = 118,442,938,519,671,952/438,621,990.80
  6. Step 6: Final answer
    x = 270,034,200.30

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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.