Home / 28,502,408.79-39,333,828.02-15,450,101.19

Finding the Fourth Proportional to 28,502,408.79, 39,333,828.02 and 15,450,101.19

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Solution

The fourth proportional to 28,502,408.79, 39,333,828.02 and 15,450,101.19 is: 21,321,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,408.79 : 39,333,828.02 = 15,450,101.19 : x
  2. Step 2: Convert to fraction form
    28,502,408.79/39,333,828.02 = 15,450,101.19/x
  3. Step 3: Cross multiply
    28,502,408.79x = 39,333,828.02 × 15,450,101.19
  4. Step 4: Simplify right side
    28,502,408.79x = 607,711,623,021,806.88
  5. Step 5: Solve for x
    x = 607,711,623,021,806.88/28,502,408.79
  6. Step 6: Final answer
    x = 21,321,412.78

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Double scale
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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.