Home / 20,659,880,646.20-30,989,820,969.30-6,686,915,009.60

Finding the Fourth Proportional to 20,659,880,646.20, 30,989,820,969.30 and 6,686,915,009.60

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Solution

The fourth proportional to 20,659,880,646.20, 30,989,820,969.30 and 6,686,915,009.60 is: 10,030,372,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659,880,646.20 : 30,989,820,969.30 = 6,686,915,009.60 : x
  2. Step 2: Convert to fraction form
    20,659,880,646.20/30,989,820,969.30 = 6,686,915,009.60/x
  3. Step 3: Cross multiply
    20,659,880,646.20x = 30,989,820,969.30 × 6,686,915,009.60
  4. Step 4: Simplify right side
    20,659,880,646.20x = 207,226,298,984,428,994,560
  5. Step 5: Solve for x
    x = 207,226,298,984,428,994,560/20,659,880,646.20
  6. Step 6: Final answer
    x = 10,030,372,514.40

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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.