Home / 137,414,232.18-189,632,033.73-78,677,798.22

Finding the Fourth Proportional to 137,414,232.18, 189,632,033.73 and 78,677,798.22

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Solution

The fourth proportional to 137,414,232.18, 189,632,033.73 and 78,677,798.22 is: 108,575,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,414,232.18 : 189,632,033.73 = 78,677,798.22 : x
  2. Step 2: Convert to fraction form
    137,414,232.18/189,632,033.73 = 78,677,798.22/x
  3. Step 3: Cross multiply
    137,414,232.18x = 189,632,033.73 × 78,677,798.22
  4. Step 4: Simplify right side
    137,414,232.18x = 14,919,830,885,857,172
  5. Step 5: Solve for x
    x = 14,919,830,885,857,172/137,414,232.18
  6. Step 6: Final answer
    x = 108,575,586.74

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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.