Home / 137,096,477.17-189,193,138.49-78,360,403.43

Finding the Fourth Proportional to 137,096,477.17, 189,193,138.49 and 78,360,403.43

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Solution

The fourth proportional to 137,096,477.17, 189,193,138.49 and 78,360,403.43 is: 108,137,356.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,096,477.17 : 189,193,138.49 = 78,360,403.43 : x
  2. Step 2: Convert to fraction form
    137,096,477.17/189,193,138.49 = 78,360,403.43/x
  3. Step 3: Cross multiply
    137,096,477.17x = 189,193,138.49 × 78,360,403.43
  4. Step 4: Simplify right side
    137,096,477.17x = 14,825,250,657,514,196
  5. Step 5: Solve for x
    x = 14,825,250,657,514,196/137,096,477.17
  6. Step 6: Final answer
    x = 108,137,356.73

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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.