Home / 38,988,507.12-53,804,152.53-21,348,527.52

Finding the Fourth Proportional to 38,988,507.12, 53,804,152.53 and 21,348,527.52

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Solution

The fourth proportional to 38,988,507.12, 53,804,152.53 and 21,348,527.52 is: 29,460,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988,507.12 : 53,804,152.53 = 21,348,527.52 : x
  2. Step 2: Convert to fraction form
    38,988,507.12/53,804,152.53 = 21,348,527.52/x
  3. Step 3: Cross multiply
    38,988,507.12x = 53,804,152.53 × 21,348,527.52
  4. Step 4: Simplify right side
    38,988,507.12x = 1,148,639,430,976,982.75
  5. Step 5: Solve for x
    x = 1,148,639,430,976,982.75/38,988,507.12
  6. Step 6: Final answer
    x = 29,460,974.93

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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.