Home / 38,561,814.04-53,215,404.44-20,920,715.69

Finding the Fourth Proportional to 38,561,814.04, 53,215,404.44 and 20,920,715.69

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Solution

The fourth proportional to 38,561,814.04, 53,215,404.44 and 20,920,715.69 is: 28,870,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,814.04 : 53,215,404.44 = 20,920,715.69 : x
  2. Step 2: Convert to fraction form
    38,561,814.04/53,215,404.44 = 20,920,715.69/x
  3. Step 3: Cross multiply
    38,561,814.04x = 53,215,404.44 × 20,920,715.69
  4. Step 4: Simplify right side
    38,561,814.04x = 1,113,304,346,617,603.62
  5. Step 5: Solve for x
    x = 1,113,304,346,617,603.62/38,561,814.04
  6. Step 6: Final answer
    x = 28,870,642.48

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.