Home / 139,175,987,549.51-208,678,543,989.55-54,086,429,405.36

Finding the Fourth Proportional to 139,175,987,549.51, 208,678,543,989.55 and 54,086,429,405.36

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Solution

The fourth proportional to 139,175,987,549.51, 208,678,543,989.55 and 54,086,429,405.36 is: 81,096,441,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,175,987,549.51 : 208,678,543,989.55 = 54,086,429,405.36 : x
  2. Step 2: Convert to fraction form
    139,175,987,549.51/208,678,543,989.55 = 54,086,429,405.36/x
  3. Step 3: Cross multiply
    139,175,987,549.51x = 208,678,543,989.55 × 54,086,429,405.36
  4. Step 4: Simplify right side
    139,175,987,549.51x = 11,286,677,337,904,106,176,512
  5. Step 5: Solve for x
    x = 11,286,677,337,904,106,176,512/139,175,987,549.51
  6. Step 6: Final answer
    x = 81,096,441,538.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.