Home / 7,111,142.28-10,666,601.64-1,719,756.36

Finding the Fourth Proportional to 7,111,142.28, 10,666,601.64 and 1,719,756.36

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Solution

The fourth proportional to 7,111,142.28, 10,666,601.64 and 1,719,756.36 is: 2,579,607.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111,142.28 : 10,666,601.64 = 1,719,756.36 : x
  2. Step 2: Convert to fraction form
    7,111,142.28/10,666,601.64 = 1,719,756.36/x
  3. Step 3: Cross multiply
    7,111,142.28x = 10,666,601.64 × 1,719,756.36
  4. Step 4: Simplify right side
    7,111,142.28x = 18,343,956,009,976.43
  5. Step 5: Solve for x
    x = 18,343,956,009,976.43/7,111,142.28
  6. Step 6: Final answer
    x = 2,579,607.51

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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.