Home / 137,666,439.72-189,973,867.74-74,941,232.04

Finding the Fourth Proportional to 137,666,439.72, 189,973,867.74 and 74,941,232.04

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Solution

The fourth proportional to 137,666,439.72, 189,973,867.74 and 74,941,232.04 is: 103,415,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,666,439.72 : 189,973,867.74 = 74,941,232.04 : x
  2. Step 2: Convert to fraction form
    137,666,439.72/189,973,867.74 = 74,941,232.04/x
  3. Step 3: Cross multiply
    137,666,439.72x = 189,973,867.74 × 74,941,232.04
  4. Step 4: Simplify right side
    137,666,439.72x = 14,236,875,703,839,612
  5. Step 5: Solve for x
    x = 14,236,875,703,839,612/137,666,439.72
  6. Step 6: Final answer
    x = 103,415,732.50

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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.