Home / 27,788,688.54-38,348,615.40-15,398,988.96

Finding the Fourth Proportional to 27,788,688.54, 38,348,615.40 and 15,398,988.96

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Solution

The fourth proportional to 27,788,688.54, 38,348,615.40 and 15,398,988.96 is: 21,250,729.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788,688.54 : 38,348,615.40 = 15,398,988.96 : x
  2. Step 2: Convert to fraction form
    27,788,688.54/38,348,615.40 = 15,398,988.96/x
  3. Step 3: Cross multiply
    27,788,688.54x = 38,348,615.40 × 15,398,988.96
  4. Step 4: Simplify right side
    27,788,688.54x = 590,529,905,175,886
  5. Step 5: Solve for x
    x = 590,529,905,175,886/27,788,688.54
  6. Step 6: Final answer
    x = 21,250,729.57

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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.