Home / 20,813,023.40-31,228,866.30-9,447,621.80

Finding the Fourth Proportional to 20,813,023.40, 31,228,866.30 and 9,447,621.80

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Solution

The fourth proportional to 20,813,023.40, 31,228,866.30 and 9,447,621.80 is: 14,175,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813,023.40 : 31,228,866.30 = 9,447,621.80 : x
  2. Step 2: Convert to fraction form
    20,813,023.40/31,228,866.30 = 9,447,621.80/x
  3. Step 3: Cross multiply
    20,813,023.40x = 31,228,866.30 × 9,447,621.80
  4. Step 4: Simplify right side
    20,813,023.40x = 295,038,518,045,165.38
  5. Step 5: Solve for x
    x = 295,038,518,045,165.38/20,813,023.40
  6. Step 6: Final answer
    x = 14,175,668.40

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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.