Home / 12,018,999.40-18,028,499.10-3,499,613.80

Finding the Fourth Proportional to 12,018,999.40, 18,028,499.10 and 3,499,613.80

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Solution

The fourth proportional to 12,018,999.40, 18,028,499.10 and 3,499,613.80 is: 5,249,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018,999.40 : 18,028,499.10 = 3,499,613.80 : x
  2. Step 2: Convert to fraction form
    12,018,999.40/18,028,499.10 = 3,499,613.80/x
  3. Step 3: Cross multiply
    12,018,999.40x = 18,028,499.10 × 3,499,613.80
  4. Step 4: Simplify right side
    12,018,999.40x = 63,092,784,243,647.58
  5. Step 5: Solve for x
    x = 63,092,784,243,647.58/12,018,999.40
  6. Step 6: Final answer
    x = 5,249,420.70

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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.