Home / 38,728,026.63-53,445,635.13-21,087,896.25

Finding the Fourth Proportional to 38,728,026.63, 53,445,635.13 and 21,087,896.25

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Solution

The fourth proportional to 38,728,026.63, 53,445,635.13 and 21,087,896.25 is: 29,101,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728,026.63 : 53,445,635.13 = 21,087,896.25 : x
  2. Step 2: Convert to fraction form
    38,728,026.63/53,445,635.13 = 21,087,896.25/x
  3. Step 3: Cross multiply
    38,728,026.63x = 53,445,635.13 × 21,087,896.25
  4. Step 4: Simplify right side
    38,728,026.63x = 1,127,056,008,636,795.25
  5. Step 5: Solve for x
    x = 1,127,056,008,636,795.25/38,728,026.63
  6. Step 6: Final answer
    x = 29,101,818.68

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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.