Home / 20,668,615,766.20-31,002,923,649.30-18,219,735,638.20

Finding the Fourth Proportional to 20,668,615,766.20, 31,002,923,649.30 and 18,219,735,638.20

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Solution

The fourth proportional to 20,668,615,766.20, 31,002,923,649.30 and 18,219,735,638.20 is: 27,329,603,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,615,766.20 : 31,002,923,649.30 = 18,219,735,638.20 : x
  2. Step 2: Convert to fraction form
    20,668,615,766.20/31,002,923,649.30 = 18,219,735,638.20/x
  3. Step 3: Cross multiply
    20,668,615,766.20x = 31,002,923,649.30 × 18,219,735,638.20
  4. Step 4: Simplify right side
    20,668,615,766.20x = 564,865,072,901,544,804,352
  5. Step 5: Solve for x
    x = 564,865,072,901,544,804,352/20,668,615,766.20
  6. Step 6: Final answer
    x = 27,329,603,457.30

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1.5x scale

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.