Home / 854,279,185.72-1,178,951,049.80-477,913,321.52

Finding the Fourth Proportional to 854,279,185.72, 1,178,951,049.80 and 477,913,321.52

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Solution

The fourth proportional to 854,279,185.72, 1,178,951,049.80 and 477,913,321.52 is: 659,545,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,279,185.72 : 1,178,951,049.80 = 477,913,321.52 : x
  2. Step 2: Convert to fraction form
    854,279,185.72/1,178,951,049.80 = 477,913,321.52/x
  3. Step 3: Cross multiply
    854,279,185.72x = 1,178,951,049.80 × 477,913,321.52
  4. Step 4: Simplify right side
    854,279,185.72x = 563,436,412,119,408,896
  5. Step 5: Solve for x
    x = 563,436,412,119,408,896/854,279,185.72
  6. Step 6: Final answer
    x = 659,545,990.98

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1.5x scale

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.