Home / 505,592,830.80-758,389,246.20-142,087,186.80

Finding the Fourth Proportional to 505,592,830.80, 758,389,246.20 and 142,087,186.80

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Solution

The fourth proportional to 505,592,830.80, 758,389,246.20 and 142,087,186.80 is: 213,130,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,592,830.80 : 758,389,246.20 = 142,087,186.80 : x
  2. Step 2: Convert to fraction form
    505,592,830.80/758,389,246.20 = 142,087,186.80/x
  3. Step 3: Cross multiply
    505,592,830.80x = 758,389,246.20 × 142,087,186.80
  4. Step 4: Simplify right side
    505,592,830.80x = 107,757,394,491,930,608
  5. Step 5: Solve for x
    x = 107,757,394,491,930,608/505,592,830.80
  6. Step 6: Final answer
    x = 213,130,780.20

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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.