Home / 135,639,133.52-187,176,352.64-76,905,768.16

Finding the Fourth Proportional to 135,639,133.52, 187,176,352.64 and 76,905,768.16

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Solution

The fourth proportional to 135,639,133.52, 187,176,352.64 and 76,905,768.16 is: 106,126,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,639,133.52 : 187,176,352.64 = 76,905,768.16 : x
  2. Step 2: Convert to fraction form
    135,639,133.52/187,176,352.64 = 76,905,768.16/x
  3. Step 3: Cross multiply
    135,639,133.52x = 187,176,352.64 × 76,905,768.16
  4. Step 4: Simplify right side
    135,639,133.52x = 14,394,941,181,166,242
  5. Step 5: Solve for x
    x = 14,394,941,181,166,242/135,639,133.52
  6. Step 6: Final answer
    x = 106,126,755.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.