Home / 127,680,014.40-191,520,021.60-87,369,230.40

Finding the Fourth Proportional to 127,680,014.40, 191,520,021.60 and 87,369,230.40

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Solution

The fourth proportional to 127,680,014.40, 191,520,021.60 and 87,369,230.40 is: 131,053,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,680,014.40 : 191,520,021.60 = 87,369,230.40 : x
  2. Step 2: Convert to fraction form
    127,680,014.40/191,520,021.60 = 87,369,230.40/x
  3. Step 3: Cross multiply
    127,680,014.40x = 191,520,021.60 × 87,369,230.40
  4. Step 4: Simplify right side
    127,680,014.40x = 16,732,956,893,383,378
  5. Step 5: Solve for x
    x = 16,732,956,893,383,378/127,680,014.40
  6. Step 6: Final answer
    x = 131,053,845.60

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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.