Home / 127,872,013.20-191,808,019.80-73,284,493.20

Finding the Fourth Proportional to 127,872,013.20, 191,808,019.80 and 73,284,493.20

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Solution

The fourth proportional to 127,872,013.20, 191,808,019.80 and 73,284,493.20 is: 109,926,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872,013.20 : 191,808,019.80 = 73,284,493.20 : x
  2. Step 2: Convert to fraction form
    127,872,013.20/191,808,019.80 = 73,284,493.20/x
  3. Step 3: Cross multiply
    127,872,013.20x = 191,808,019.80 × 73,284,493.20
  4. Step 4: Simplify right side
    127,872,013.20x = 14,056,553,522,738,566
  5. Step 5: Solve for x
    x = 14,056,553,522,738,566/127,872,013.20
  6. Step 6: Final answer
    x = 109,926,739.80

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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.