Home / 442,679,478.67-664,162,886.59-131,789,783.74

Finding the Fourth Proportional to 442,679,478.67, 664,162,886.59 and 131,789,783.74

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Solution

The fourth proportional to 442,679,478.67, 664,162,886.59 and 131,789,783.74 is: 197,727,447.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679,478.67 : 664,162,886.59 = 131,789,783.74 : x
  2. Step 2: Convert to fraction form
    442,679,478.67/664,162,886.59 = 131,789,783.74/x
  3. Step 3: Cross multiply
    442,679,478.67x = 664,162,886.59 × 131,789,783.74
  4. Step 4: Simplify right side
    442,679,478.67x = 87,529,883,191,830,240
  5. Step 5: Solve for x
    x = 87,529,883,191,830,240/442,679,478.67
  6. Step 6: Final answer
    x = 197,727,447.08

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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.