Home / 137,648,496.19-189,959,937.07-74,921,564.52

Finding the Fourth Proportional to 137,648,496.19, 189,959,937.07 and 74,921,564.52

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Solution

The fourth proportional to 137,648,496.19, 189,959,937.07 and 74,921,564.52 is: 103,394,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,496.19 : 189,959,937.07 = 74,921,564.52 : x
  2. Step 2: Convert to fraction form
    137,648,496.19/189,959,937.07 = 74,921,564.52/x
  3. Step 3: Cross multiply
    137,648,496.19x = 189,959,937.07 × 74,921,564.52
  4. Step 4: Simplify right side
    137,648,496.19x = 14,232,095,682,211,148
  5. Step 5: Solve for x
    x = 14,232,095,682,211,148/137,648,496.19
  6. Step 6: Final answer
    x = 103,394,487.24

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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.