Home / 137,648,416.93-189,959,827.91-74,921,485.46

Finding the Fourth Proportional to 137,648,416.93, 189,959,827.91 and 74,921,485.46

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Solution

The fourth proportional to 137,648,416.93, 189,959,827.91 and 74,921,485.46 is: 103,394,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,416.93 : 189,959,827.91 = 74,921,485.46 : x
  2. Step 2: Convert to fraction form
    137,648,416.93/189,959,827.91 = 74,921,485.46/x
  3. Step 3: Cross multiply
    137,648,416.93x = 189,959,827.91 × 74,921,485.46
  4. Step 4: Simplify right side
    137,648,416.93x = 14,232,072,483,418,760
  5. Step 5: Solve for x
    x = 14,232,072,483,418,760/137,648,416.93
  6. Step 6: Final answer
    x = 103,394,378.24

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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.