Home / 13,478,955.92-20,221,979.16-4,843,928.72

Finding the Fourth Proportional to 13,478,955.92, 20,221,979.16 and 4,843,928.72

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Solution

The fourth proportional to 13,478,955.92, 20,221,979.16 and 4,843,928.72 is: 7,267,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478,955.92 : 20,221,979.16 = 4,843,928.72 : x
  2. Step 2: Convert to fraction form
    13,478,955.92/20,221,979.16 = 4,843,928.72/x
  3. Step 3: Cross multiply
    13,478,955.92x = 20,221,979.16 × 4,843,928.72
  4. Step 4: Simplify right side
    13,478,955.92x = 97,953,825,628,365.47
  5. Step 5: Solve for x
    x = 97,953,825,628,365.47/13,478,955.92
  6. Step 6: Final answer
    x = 7,267,167.15

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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.