Home / 153,534,383.72-211,877,142.36-87,454,856.96

Finding the Fourth Proportional to 153,534,383.72, 211,877,142.36 and 87,454,856.96

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Solution

The fourth proportional to 153,534,383.72, 211,877,142.36 and 87,454,856.96 is: 120,687,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,534,383.72 : 211,877,142.36 = 87,454,856.96 : x
  2. Step 2: Convert to fraction form
    153,534,383.72/211,877,142.36 = 87,454,856.96/x
  3. Step 3: Cross multiply
    153,534,383.72x = 211,877,142.36 × 87,454,856.96
  4. Step 4: Simplify right side
    153,534,383.72x = 18,529,685,178,187,356
  5. Step 5: Solve for x
    x = 18,529,685,178,187,356/153,534,383.72
  6. Step 6: Final answer
    x = 120,687,527.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.