Home / 12,018,001.70-18,027,002.55-4,830,644.90

Finding the Fourth Proportional to 12,018,001.70, 18,027,002.55 and 4,830,644.90

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Solution

The fourth proportional to 12,018,001.70, 18,027,002.55 and 4,830,644.90 is: 7,245,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018,001.70 : 18,027,002.55 = 4,830,644.90 : x
  2. Step 2: Convert to fraction form
    12,018,001.70/18,027,002.55 = 4,830,644.90/x
  3. Step 3: Cross multiply
    12,018,001.70x = 18,027,002.55 × 4,830,644.90
  4. Step 4: Simplify right side
    12,018,001.70x = 87,082,047,930,444.50
  5. Step 5: Solve for x
    x = 87,082,047,930,444.50/12,018,001.70
  6. Step 6: Final answer
    x = 7,245,967.35

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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.