Home / 20,618,690,653.42-30,915,378,564.52-8,012,830,256.88

Finding the Fourth Proportional to 20,618,690,653.42, 30,915,378,564.52 and 8,012,830,256.88

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Solution

The fourth proportional to 20,618,690,653.42, 30,915,378,564.52 and 8,012,830,256.88 is: 12,014,326,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618,690,653.42 : 30,915,378,564.52 = 8,012,830,256.88 : x
  2. Step 2: Convert to fraction form
    20,618,690,653.42/30,915,378,564.52 = 8,012,830,256.88/x
  3. Step 3: Cross multiply
    20,618,690,653.42x = 30,915,378,564.52 × 8,012,830,256.88
  4. Step 4: Simplify right side
    20,618,690,653.42x = 247,719,680,764,685,254,656
  5. Step 5: Solve for x
    x = 247,719,680,764,685,254,656/20,618,690,653.42
  6. Step 6: Final answer
    x = 12,014,326,463.72

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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.