Home / 18,685,536.30-28,028,304.45-11,607,648.30

Finding the Fourth Proportional to 18,685,536.30, 28,028,304.45 and 11,607,648.30

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Solution

The fourth proportional to 18,685,536.30, 28,028,304.45 and 11,607,648.30 is: 17,411,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,536.30 : 28,028,304.45 = 11,607,648.30 : x
  2. Step 2: Convert to fraction form
    18,685,536.30/28,028,304.45 = 11,607,648.30/x
  3. Step 3: Cross multiply
    18,685,536.30x = 28,028,304.45 × 11,607,648.30
  4. Step 4: Simplify right side
    18,685,536.30x = 325,342,700,500,924.94
  5. Step 5: Solve for x
    x = 325,342,700,500,924.94/18,685,536.30
  6. Step 6: Final answer
    x = 17,411,472.45

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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.