Home / 38,478,507.10-53,101,198.96-21,958,302.76

Finding the Fourth Proportional to 38,478,507.10, 53,101,198.96 and 21,958,302.76

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Solution

The fourth proportional to 38,478,507.10, 53,101,198.96 and 21,958,302.76 is: 30,302,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,507.10 : 53,101,198.96 = 21,958,302.76 : x
  2. Step 2: Convert to fraction form
    38,478,507.10/53,101,198.96 = 21,958,302.76/x
  3. Step 3: Cross multiply
    38,478,507.10x = 53,101,198.96 × 21,958,302.76
  4. Step 4: Simplify right side
    38,478,507.10x = 1,166,012,203,495,028.50
  5. Step 5: Solve for x
    x = 1,166,012,203,495,028.50/38,478,507.10
  6. Step 6: Final answer
    x = 30,302,948.10

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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.