Home / 137,652,048.50-189,963,742.80-74,932,191.32

Finding the Fourth Proportional to 137,652,048.50, 189,963,742.80 and 74,932,191.32

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Solution

The fourth proportional to 137,652,048.50, 189,963,742.80 and 74,932,191.32 is: 103,408,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,652,048.50 : 189,963,742.80 = 74,932,191.32 : x
  2. Step 2: Convert to fraction form
    137,652,048.50/189,963,742.80 = 74,932,191.32/x
  3. Step 3: Cross multiply
    137,652,048.50x = 189,963,742.80 × 74,932,191.32
  4. Step 4: Simplify right side
    137,652,048.50x = 14,234,399,519,352,872
  5. Step 5: Solve for x
    x = 14,234,399,519,352,872/137,652,048.50
  6. Step 6: Final answer
    x = 103,408,555.66

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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.