Home / 213,539,009.70-320,308,514.55-145,010,676.90

Finding the Fourth Proportional to 213,539,009.70, 320,308,514.55 and 145,010,676.90

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Solution

The fourth proportional to 213,539,009.70, 320,308,514.55 and 145,010,676.90 is: 217,516,015.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,539,009.70 : 320,308,514.55 = 145,010,676.90 : x
  2. Step 2: Convert to fraction form
    213,539,009.70/320,308,514.55 = 145,010,676.90/x
  3. Step 3: Cross multiply
    213,539,009.70x = 320,308,514.55 × 145,010,676.90
  4. Step 4: Simplify right side
    213,539,009.70x = 46,448,154,511,729,000
  5. Step 5: Solve for x
    x = 46,448,154,511,729,000/213,539,009.70
  6. Step 6: Final answer
    x = 217,516,015.35

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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.