Home / 213,030,010.20-319,545,015.30-122,330,746.20

Finding the Fourth Proportional to 213,030,010.20, 319,545,015.30 and 122,330,746.20

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Solution

The fourth proportional to 213,030,010.20, 319,545,015.30 and 122,330,746.20 is: 183,496,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,030,010.20 : 319,545,015.30 = 122,330,746.20 : x
  2. Step 2: Convert to fraction form
    213,030,010.20/319,545,015.30 = 122,330,746.20/x
  3. Step 3: Cross multiply
    213,030,010.20x = 319,545,015.30 × 122,330,746.20
  4. Step 4: Simplify right side
    213,030,010.20x = 39,090,180,166,139,416
  5. Step 5: Solve for x
    x = 39,090,180,166,139,416/213,030,010.20
  6. Step 6: Final answer
    x = 183,496,119.30

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Double scale
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Similar ratio
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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.