Home / 137,648,498.94-189,959,940.88-74,921,567.28

Finding the Fourth Proportional to 137,648,498.94, 189,959,940.88 and 74,921,567.28

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Solution

The fourth proportional to 137,648,498.94, 189,959,940.88 and 74,921,567.28 is: 103,394,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,498.94 : 189,959,940.88 = 74,921,567.28 : x
  2. Step 2: Convert to fraction form
    137,648,498.94/189,959,940.88 = 74,921,567.28/x
  3. Step 3: Cross multiply
    137,648,498.94x = 189,959,940.88 × 74,921,567.28
  4. Step 4: Simplify right side
    137,648,498.94x = 14,232,096,491,145,742
  5. Step 5: Solve for x
    x = 14,232,096,491,145,742/137,648,498.94
  6. Step 6: Final answer
    x = 103,394,491.05

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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.