Home / 137,228,854,406.50-189,380,417,564.64-76,263,790,751.20

Finding the Fourth Proportional to 137,228,854,406.50, 189,380,417,564.64 and 76,263,790,751.20

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Solution

The fourth proportional to 137,228,854,406.50, 189,380,417,564.64 and 76,263,790,751.20 is: 105,246,586,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,228,854,406.50 : 189,380,417,564.64 = 76,263,790,751.20 : x
  2. Step 2: Convert to fraction form
    137,228,854,406.50/189,380,417,564.64 = 76,263,790,751.20/x
  3. Step 3: Cross multiply
    137,228,854,406.50x = 189,380,417,564.64 × 76,263,790,751.20
  4. Step 4: Simplify right side
    137,228,854,406.50x = 14,442,868,537,524,586,807,296
  5. Step 5: Solve for x
    x = 14,442,868,537,524,586,807,296/137,228,854,406.50
  6. Step 6: Final answer
    x = 105,246,586,805.58

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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.