Home / 13,666,076.25-20,513,298.24-7,920,036.51

Finding the Fourth Proportional to 13,666,076.25, 20,513,298.24 and 7,920,036.51

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Solution

The fourth proportional to 13,666,076.25, 20,513,298.24 and 7,920,036.51 is: 11,888,274.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666,076.25 : 20,513,298.24 = 7,920,036.51 : x
  2. Step 2: Convert to fraction form
    13,666,076.25/20,513,298.24 = 7,920,036.51/x
  3. Step 3: Cross multiply
    13,666,076.25x = 20,513,298.24 × 7,920,036.51
  4. Step 4: Simplify right side
    13,666,076.25x = 162,466,071,001,318.72
  5. Step 5: Solve for x
    x = 162,466,071,001,318.72/13,666,076.25
  6. Step 6: Final answer
    x = 11,888,274.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.