Home / 134,569,523.47-185,706,023.75-72,689,889.37

Finding the Fourth Proportional to 134,569,523.47, 185,706,023.75 and 72,689,889.37

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Solution

The fourth proportional to 134,569,523.47, 185,706,023.75 and 72,689,889.37 is: 100,312,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,569,523.47 : 185,706,023.75 = 72,689,889.37 : x
  2. Step 2: Convert to fraction form
    134,569,523.47/185,706,023.75 = 72,689,889.37/x
  3. Step 3: Cross multiply
    134,569,523.47x = 185,706,023.75 × 72,689,889.37
  4. Step 4: Simplify right side
    134,569,523.47x = 13,498,950,321,366,644
  5. Step 5: Solve for x
    x = 13,498,950,321,366,644/134,569,523.47
  6. Step 6: Final answer
    x = 100,312,091.28

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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.