Home / 38,469,000.78-53,087,219.82-21,066,409.98

Finding the Fourth Proportional to 38,469,000.78, 53,087,219.82 and 21,066,409.98

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Solution

The fourth proportional to 38,469,000.78, 53,087,219.82 and 21,066,409.98 is: 29,071,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469,000.78 : 53,087,219.82 = 21,066,409.98 : x
  2. Step 2: Convert to fraction form
    38,469,000.78/53,087,219.82 = 21,066,409.98/x
  3. Step 3: Cross multiply
    38,469,000.78x = 53,087,219.82 × 21,066,409.98
  4. Step 4: Simplify right side
    38,469,000.78x = 1,118,357,137,426,501.88
  5. Step 5: Solve for x
    x = 1,118,357,137,426,501.88/38,469,000.78
  6. Step 6: Final answer
    x = 29,071,645.08

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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.