Home / 10,353,780,015.40-15,530,670,023.10-8,631,911,175.40

Finding the Fourth Proportional to 10,353,780,015.40, 15,530,670,023.10 and 8,631,911,175.40

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Solution

The fourth proportional to 10,353,780,015.40, 15,530,670,023.10 and 8,631,911,175.40 is: 12,947,866,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353,780,015.40 : 15,530,670,023.10 = 8,631,911,175.40 : x
  2. Step 2: Convert to fraction form
    10,353,780,015.40/15,530,670,023.10 = 8,631,911,175.40/x
  3. Step 3: Cross multiply
    10,353,780,015.40x = 15,530,670,023.10 × 8,631,911,175.40
  4. Step 4: Simplify right side
    10,353,780,015.40x = 134,059,364,133,846,663,168
  5. Step 5: Solve for x
    x = 134,059,364,133,846,663,168/10,353,780,015.40
  6. Step 6: Final answer
    x = 12,947,866,763.10

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Double scale
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Similar ratio
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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.