Home / 137,545,804.63-189,900,340.03-85,390,184.89

Finding the Fourth Proportional to 137,545,804.63, 189,900,340.03 and 85,390,184.89

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Solution

The fourth proportional to 137,545,804.63, 189,900,340.03 and 85,390,184.89 is: 117,892,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,545,804.63 : 189,900,340.03 = 85,390,184.89 : x
  2. Step 2: Convert to fraction form
    137,545,804.63/189,900,340.03 = 85,390,184.89/x
  3. Step 3: Cross multiply
    137,545,804.63x = 189,900,340.03 × 85,390,184.89
  4. Step 4: Simplify right side
    137,545,804.63x = 16,215,625,145,525,092
  5. Step 5: Solve for x
    x = 16,215,625,145,525,092/137,545,804.63
  6. Step 6: Final answer
    x = 117,892,546.34

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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.