Home / 20,210,651.40-30,315,977.10-9,448,971.15

Finding the Fourth Proportional to 20,210,651.40, 30,315,977.10 and 9,448,971.15

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Solution

The fourth proportional to 20,210,651.40, 30,315,977.10 and 9,448,971.15 is: 14,173,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,651.40 : 30,315,977.10 = 9,448,971.15 : x
  2. Step 2: Convert to fraction form
    20,210,651.40/30,315,977.10 = 9,448,971.15/x
  3. Step 3: Cross multiply
    20,210,651.40x = 30,315,977.10 × 9,448,971.15
  4. Step 4: Simplify right side
    20,210,651.40x = 286,454,793,001,960.69
  5. Step 5: Solve for x
    x = 286,454,793,001,960.69/20,210,651.40
  6. Step 6: Final answer
    x = 14,173,456.73

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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.