Home / 5,155,016.88-7,113,133.36-2,979,140.21

Finding the Fourth Proportional to 5,155,016.88, 7,113,133.36 and 2,979,140.21

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Solution

The fourth proportional to 5,155,016.88, 7,113,133.36 and 2,979,140.21 is: 4,110,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155,016.88 : 7,113,133.36 = 2,979,140.21 : x
  2. Step 2: Convert to fraction form
    5,155,016.88/7,113,133.36 = 2,979,140.21/x
  3. Step 3: Cross multiply
    5,155,016.88x = 7,113,133.36 × 2,979,140.21
  4. Step 4: Simplify right side
    5,155,016.88x = 21,191,021,606,700.91
  5. Step 5: Solve for x
    x = 21,191,021,606,700.91/5,155,016.88
  6. Step 6: Final answer
    x = 4,110,756.97

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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.