Home / 131,109,634.82-180,931,332.22-72,372,338.12

Finding the Fourth Proportional to 131,109,634.82, 180,931,332.22 and 72,372,338.12

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Solution

The fourth proportional to 131,109,634.82, 180,931,332.22 and 72,372,338.12 is: 99,873,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,634.82 : 180,931,332.22 = 72,372,338.12 : x
  2. Step 2: Convert to fraction form
    131,109,634.82/180,931,332.22 = 72,372,338.12/x
  3. Step 3: Cross multiply
    131,109,634.82x = 180,931,332.22 × 72,372,338.12
  4. Step 4: Simplify right side
    131,109,634.82x = 13,094,423,550,842,302
  5. Step 5: Solve for x
    x = 13,094,423,550,842,302/131,109,634.82
  6. Step 6: Final answer
    x = 99,873,846.57

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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.