Home / 137,412,437.12-189,628,045.44-75,532,117.76

Finding the Fourth Proportional to 137,412,437.12, 189,628,045.44 and 75,532,117.76

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Solution

The fourth proportional to 137,412,437.12, 189,628,045.44 and 75,532,117.76 is: 104,233,708.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,412,437.12 : 189,628,045.44 = 75,532,117.76 : x
  2. Step 2: Convert to fraction form
    137,412,437.12/189,628,045.44 = 75,532,117.76/x
  3. Step 3: Cross multiply
    137,412,437.12x = 189,628,045.44 × 75,532,117.76
  4. Step 4: Simplify right side
    137,412,437.12x = 14,323,007,858,772,712
  5. Step 5: Solve for x
    x = 14,323,007,858,772,712/137,412,437.12
  6. Step 6: Final answer
    x = 104,233,708.09

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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.