Home / 20,659,880,645.20-30,989,820,967.80-6,686,915,008.60

Finding the Fourth Proportional to 20,659,880,645.20, 30,989,820,967.80 and 6,686,915,008.60

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Solution

The fourth proportional to 20,659,880,645.20, 30,989,820,967.80 and 6,686,915,008.60 is: 10,030,372,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659,880,645.20 : 30,989,820,967.80 = 6,686,915,008.60 : x
  2. Step 2: Convert to fraction form
    20,659,880,645.20/30,989,820,967.80 = 6,686,915,008.60/x
  3. Step 3: Cross multiply
    20,659,880,645.20x = 30,989,820,967.80 × 6,686,915,008.60
  4. Step 4: Simplify right side
    20,659,880,645.20x = 207,226,298,943,408,799,744
  5. Step 5: Solve for x
    x = 207,226,298,943,408,799,744/20,659,880,645.20
  6. Step 6: Final answer
    x = 10,030,372,512.90

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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.