Home / 38,988,222.72-53,801,701.60-21,343,742.68

Finding the Fourth Proportional to 38,988,222.72, 53,801,701.60 and 21,343,742.68

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Solution

The fourth proportional to 38,988,222.72, 53,801,701.60 and 21,343,742.68 is: 29,453,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988,222.72 : 53,801,701.60 = 21,343,742.68 : x
  2. Step 2: Convert to fraction form
    38,988,222.72/53,801,701.60 = 21,343,742.68/x
  3. Step 3: Cross multiply
    38,988,222.72x = 53,801,701.60 × 21,343,742.68
  4. Step 4: Simplify right side
    38,988,222.72x = 1,148,329,674,696,544.25
  5. Step 5: Solve for x
    x = 1,148,329,674,696,544.25/38,988,222.72
  6. Step 6: Final answer
    x = 29,453,244.97

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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.