Home / 137,648,424.65-189,959,838.51-74,921,493.15

Finding the Fourth Proportional to 137,648,424.65, 189,959,838.51 and 74,921,493.15

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Solution

The fourth proportional to 137,648,424.65, 189,959,838.51 and 74,921,493.15 is: 103,394,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,424.65 : 189,959,838.51 = 74,921,493.15 : x
  2. Step 2: Convert to fraction form
    137,648,424.65/189,959,838.51 = 74,921,493.15/x
  3. Step 3: Cross multiply
    137,648,424.65x = 189,959,838.51 × 74,921,493.15
  4. Step 4: Simplify right side
    137,648,424.65x = 14,232,074,739,702,072
  5. Step 5: Solve for x
    x = 14,232,074,739,702,072/137,648,424.65
  6. Step 6: Final answer
    x = 103,394,388.83

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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.