Home / 280,633,453,885.81-420,974,927,365.41-79,176,951,944.29

Finding the Fourth Proportional to 280,633,453,885.81, 420,974,927,365.41 and 79,176,951,944.29

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Solution

The fourth proportional to 280,633,453,885.81, 420,974,927,365.41 and 79,176,951,944.29 is: 118,772,409,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,633,453,885.81 : 420,974,927,365.41 = 79,176,951,944.29 : x
  2. Step 2: Convert to fraction form
    280,633,453,885.81/420,974,927,365.41 = 79,176,951,944.29/x
  3. Step 3: Cross multiply
    280,633,453,885.81x = 420,974,927,365.41 × 79,176,951,944.29
  4. Step 4: Simplify right side
    280,633,453,885.81x = 33,331,511,593,762,037,956,608
  5. Step 5: Solve for x
    x = 33,331,511,593,762,037,956,608/280,633,453,885.81
  6. Step 6: Final answer
    x = 118,772,409,818.70

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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.