Home / 42,362,905.34-63,515,348.45-21,573,100.28

Finding the Fourth Proportional to 42,362,905.34, 63,515,348.45 and 21,573,100.28

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Solution

The fourth proportional to 42,362,905.34, 63,515,348.45 and 21,573,100.28 is: 32,344,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,362,905.34 : 63,515,348.45 = 21,573,100.28 : x
  2. Step 2: Convert to fraction form
    42,362,905.34/63,515,348.45 = 21,573,100.28/x
  3. Step 3: Cross multiply
    42,362,905.34x = 63,515,348.45 × 21,573,100.28
  4. Step 4: Simplify right side
    42,362,905.34x = 1,370,222,981,005,550.25
  5. Step 5: Solve for x
    x = 1,370,222,981,005,550.25/42,362,905.34
  6. Step 6: Final answer
    x = 32,344,877.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.