Home / 13,146,661.40-19,719,992.10-4,628,312.60

Finding the Fourth Proportional to 13,146,661.40, 19,719,992.10 and 4,628,312.60

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Solution

The fourth proportional to 13,146,661.40, 19,719,992.10 and 4,628,312.60 is: 6,942,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,661.40 : 19,719,992.10 = 4,628,312.60 : x
  2. Step 2: Convert to fraction form
    13,146,661.40/19,719,992.10 = 4,628,312.60/x
  3. Step 3: Cross multiply
    13,146,661.40x = 19,719,992.10 × 4,628,312.60
  4. Step 4: Simplify right side
    13,146,661.40x = 91,270,287,908,330.45
  5. Step 5: Solve for x
    x = 91,270,287,908,330.45/13,146,661.40
  6. Step 6: Final answer
    x = 6,942,468.90

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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.