Home / 438,620,512.80-657,930,769.20-180,021,322.20

Finding the Fourth Proportional to 438,620,512.80, 657,930,769.20 and 180,021,322.20

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Solution

The fourth proportional to 438,620,512.80, 657,930,769.20 and 180,021,322.20 is: 270,031,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,620,512.80 : 657,930,769.20 = 180,021,322.20 : x
  2. Step 2: Convert to fraction form
    438,620,512.80/657,930,769.20 = 180,021,322.20/x
  3. Step 3: Cross multiply
    438,620,512.80x = 657,930,769.20 × 180,021,322.20
  4. Step 4: Simplify right side
    438,620,512.80x = 118,441,566,987,447,040
  5. Step 5: Solve for x
    x = 118,441,566,987,447,040/438,620,512.80
  6. Step 6: Final answer
    x = 270,031,983.30

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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.