Home / 38,457,881.60-53,072,509.44-21,053,939.76

Finding the Fourth Proportional to 38,457,881.60, 53,072,509.44 and 21,053,939.76

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Solution

The fourth proportional to 38,457,881.60, 53,072,509.44 and 21,053,939.76 is: 29,054,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,457,881.60 : 53,072,509.44 = 21,053,939.76 : x
  2. Step 2: Convert to fraction form
    38,457,881.60/53,072,509.44 = 21,053,939.76/x
  3. Step 3: Cross multiply
    38,457,881.60x = 53,072,509.44 × 21,053,939.76
  4. Step 4: Simplify right side
    38,457,881.60x = 1,117,385,416,661,791.38
  5. Step 5: Solve for x
    x = 1,117,385,416,661,791.38/38,457,881.60
  6. Step 6: Final answer
    x = 29,054,783.32

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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.