Home / 137,648,495.13-189,959,935.61-74,921,563.47

Finding the Fourth Proportional to 137,648,495.13, 189,959,935.61 and 74,921,563.47

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Solution

The fourth proportional to 137,648,495.13, 189,959,935.61 and 74,921,563.47 is: 103,394,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,495.13 : 189,959,935.61 = 74,921,563.47 : x
  2. Step 2: Convert to fraction form
    137,648,495.13/189,959,935.61 = 74,921,563.47/x
  3. Step 3: Cross multiply
    137,648,495.13x = 189,959,935.61 × 74,921,563.47
  4. Step 4: Simplify right side
    137,648,495.13x = 14,232,095,371,237,320
  5. Step 5: Solve for x
    x = 14,232,095,371,237,320/137,648,495.13
  6. Step 6: Final answer
    x = 103,394,485.78

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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.