Home / 28,146,608.10-38,842,022.48-15,756,803.40

Finding the Fourth Proportional to 28,146,608.10, 38,842,022.48 and 15,756,803.40

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Solution

The fourth proportional to 28,146,608.10, 38,842,022.48 and 15,756,803.40 is: 21,744,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146,608.10 : 38,842,022.48 = 15,756,803.40 : x
  2. Step 2: Convert to fraction form
    28,146,608.10/38,842,022.48 = 15,756,803.40/x
  3. Step 3: Cross multiply
    28,146,608.10x = 38,842,022.48 × 15,756,803.40
  4. Step 4: Simplify right side
    28,146,608.10x = 612,026,111,845,201.62
  5. Step 5: Solve for x
    x = 612,026,111,845,201.62/28,146,608.10
  6. Step 6: Final answer
    x = 21,744,222.59

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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.