Home / 140,402,546.28-193,748,424.39-76,821,509.61

Finding the Fourth Proportional to 140,402,546.28, 193,748,424.39 and 76,821,509.61

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Solution

The fourth proportional to 140,402,546.28, 193,748,424.39 and 76,821,509.61 is: 106,009,804.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,402,546.28 : 193,748,424.39 = 76,821,509.61 : x
  2. Step 2: Convert to fraction form
    140,402,546.28/193,748,424.39 = 76,821,509.61/x
  3. Step 3: Cross multiply
    140,402,546.28x = 193,748,424.39 × 76,821,509.61
  4. Step 4: Simplify right side
    140,402,546.28x = 14,884,046,446,198,742
  5. Step 5: Solve for x
    x = 14,884,046,446,198,742/140,402,546.28
  6. Step 6: Final answer
    x = 106,009,804.24

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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.