Home / 8,072,004,121.20-12,108,006,181.80-7,258,421,094.30

Finding the Fourth Proportional to 8,072,004,121.20, 12,108,006,181.80 and 7,258,421,094.30

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Solution

The fourth proportional to 8,072,004,121.20, 12,108,006,181.80 and 7,258,421,094.30 is: 10,887,631,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072,004,121.20 : 12,108,006,181.80 = 7,258,421,094.30 : x
  2. Step 2: Convert to fraction form
    8,072,004,121.20/12,108,006,181.80 = 7,258,421,094.30/x
  3. Step 3: Cross multiply
    8,072,004,121.20x = 12,108,006,181.80 × 7,258,421,094.30
  4. Step 4: Simplify right side
    8,072,004,121.20x = 87,885,007,479,891,918,848
  5. Step 5: Solve for x
    x = 87,885,007,479,891,918,848/8,072,004,121.20
  6. Step 6: Final answer
    x = 10,887,631,641.45

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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.