Home / 30,579,143.19-42,199,223.39-16,828,107.32

Finding the Fourth Proportional to 30,579,143.19, 42,199,223.39 and 16,828,107.32

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Solution

The fourth proportional to 30,579,143.19, 42,199,223.39 and 16,828,107.32 is: 23,222,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,143.19 : 42,199,223.39 = 16,828,107.32 : x
  2. Step 2: Convert to fraction form
    30,579,143.19/42,199,223.39 = 16,828,107.32/x
  3. Step 3: Cross multiply
    30,579,143.19x = 42,199,223.39 × 16,828,107.32
  4. Step 4: Simplify right side
    30,579,143.19x = 710,133,059,732,437.62
  5. Step 5: Solve for x
    x = 710,133,059,732,437.62/30,579,143.19
  6. Step 6: Final answer
    x = 23,222,791.28

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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.