Home / 38,430,912.40-53,034,624.12-21,027,330.16

Finding the Fourth Proportional to 38,430,912.40, 53,034,624.12 and 21,027,330.16

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Solution

The fourth proportional to 38,430,912.40, 53,034,624.12 and 21,027,330.16 is: 29,017,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430,912.40 : 53,034,624.12 = 21,027,330.16 : x
  2. Step 2: Convert to fraction form
    38,430,912.40/53,034,624.12 = 21,027,330.16/x
  3. Step 3: Cross multiply
    38,430,912.40x = 53,034,624.12 × 21,027,330.16
  4. Step 4: Simplify right side
    38,430,912.40x = 1,115,176,551,282,739.38
  5. Step 5: Solve for x
    x = 1,115,176,551,282,739.38/38,430,912.40
  6. Step 6: Final answer
    x = 29,017,696.48

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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.