Home / 8,520,552,006.40-12,780,828,009.60-5,028,630,342.40

Finding the Fourth Proportional to 8,520,552,006.40, 12,780,828,009.60 and 5,028,630,342.40

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Solution

The fourth proportional to 8,520,552,006.40, 12,780,828,009.60 and 5,028,630,342.40 is: 7,542,945,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,552,006.40 : 12,780,828,009.60 = 5,028,630,342.40 : x
  2. Step 2: Convert to fraction form
    8,520,552,006.40/12,780,828,009.60 = 5,028,630,342.40/x
  3. Step 3: Cross multiply
    8,520,552,006.40x = 12,780,828,009.60 × 5,028,630,342.40
  4. Step 4: Simplify right side
    8,520,552,006.40x = 64,270,059,530,070,351,872
  5. Step 5: Solve for x
    x = 64,270,059,530,070,351,872/8,520,552,006.40
  6. Step 6: Final answer
    x = 7,542,945,513.60

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Double scale
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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.