Home / 210,146,565.80-315,219,848.70-129,524,997.80

Finding the Fourth Proportional to 210,146,565.80, 315,219,848.70 and 129,524,997.80

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Solution

The fourth proportional to 210,146,565.80, 315,219,848.70 and 129,524,997.80 is: 194,287,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,146,565.80 : 315,219,848.70 = 129,524,997.80 : x
  2. Step 2: Convert to fraction form
    210,146,565.80/315,219,848.70 = 129,524,997.80/x
  3. Step 3: Cross multiply
    210,146,565.80x = 315,219,848.70 × 129,524,997.80
  4. Step 4: Simplify right side
    210,146,565.80x = 40,828,850,209,383,832
  5. Step 5: Solve for x
    x = 40,828,850,209,383,832/210,146,565.80
  6. Step 6: Final answer
    x = 194,287,496.70

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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.