Home / 139,245,284.36-192,163,678.31-83,499,780.66

Finding the Fourth Proportional to 139,245,284.36, 192,163,678.31 and 83,499,780.66

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Solution

The fourth proportional to 139,245,284.36, 192,163,678.31 and 83,499,780.66 is: 115,232,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,245,284.36 : 192,163,678.31 = 83,499,780.66 : x
  2. Step 2: Convert to fraction form
    139,245,284.36/192,163,678.31 = 83,499,780.66/x
  3. Step 3: Cross multiply
    139,245,284.36x = 192,163,678.31 × 83,499,780.66
  4. Step 4: Simplify right side
    139,245,284.36x = 16,045,624,989,703,798
  5. Step 5: Solve for x
    x = 16,045,624,989,703,798/139,245,284.36
  6. Step 6: Final answer
    x = 115,232,807.08

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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.