Home / 20,804,574.40-31,206,958.80-7,341,402.40

Finding the Fourth Proportional to 20,804,574.40, 31,206,958.80 and 7,341,402.40

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Solution

The fourth proportional to 20,804,574.40, 31,206,958.80 and 7,341,402.40 is: 11,012,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,574.40 : 31,206,958.80 = 7,341,402.40 : x
  2. Step 2: Convert to fraction form
    20,804,574.40/31,206,958.80 = 7,341,402.40/x
  3. Step 3: Cross multiply
    20,804,574.40x = 31,206,958.80 × 7,341,402.40
  4. Step 4: Simplify right side
    20,804,574.40x = 229,102,842,231,021.12
  5. Step 5: Solve for x
    x = 229,102,842,231,021.12/20,804,574.40
  6. Step 6: Final answer
    x = 11,012,137.90

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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.