Home / 8,520,552,003.40-12,780,828,005.10-5,028,630,339.40

Finding the Fourth Proportional to 8,520,552,003.40, 12,780,828,005.10 and 5,028,630,339.40

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Solution

The fourth proportional to 8,520,552,003.40, 12,780,828,005.10 and 5,028,630,339.40 is: 7,542,945,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,552,003.40 : 12,780,828,005.10 = 5,028,630,339.40 : x
  2. Step 2: Convert to fraction form
    8,520,552,003.40/12,780,828,005.10 = 5,028,630,339.40/x
  3. Step 3: Cross multiply
    8,520,552,003.40x = 12,780,828,005.10 × 5,028,630,339.40
  4. Step 4: Simplify right side
    8,520,552,003.40x = 64,270,059,469,099,032,576
  5. Step 5: Solve for x
    x = 64,270,059,469,099,032,576/8,520,552,003.40
  6. Step 6: Final answer
    x = 7,542,945,509.10

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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.