Home / 127,789,384.80-191,684,077.20-51,167,402.40

Finding the Fourth Proportional to 127,789,384.80, 191,684,077.20 and 51,167,402.40

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Solution

The fourth proportional to 127,789,384.80, 191,684,077.20 and 51,167,402.40 is: 76,751,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789,384.80 : 191,684,077.20 = 51,167,402.40 : x
  2. Step 2: Convert to fraction form
    127,789,384.80/191,684,077.20 = 51,167,402.40/x
  3. Step 3: Cross multiply
    127,789,384.80x = 191,684,077.20 × 51,167,402.40
  4. Step 4: Simplify right side
    127,789,384.80x = 9,807,976,311,765,064
  5. Step 5: Solve for x
    x = 9,807,976,311,765,064/127,789,384.80
  6. Step 6: Final answer
    x = 76,751,103.60

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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.