Home / 120,066,309.86-180,117,364.03-38,187,859.32

Finding the Fourth Proportional to 120,066,309.86, 180,117,364.03 and 38,187,859.32

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Solution

The fourth proportional to 120,066,309.86, 180,117,364.03 and 38,187,859.32 is: 57,287,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,066,309.86 : 180,117,364.03 = 38,187,859.32 : x
  2. Step 2: Convert to fraction form
    120,066,309.86/180,117,364.03 = 38,187,859.32/x
  3. Step 3: Cross multiply
    120,066,309.86x = 180,117,364.03 × 38,187,859.32
  4. Step 4: Simplify right side
    120,066,309.86x = 6,878,296,558,571,399
  5. Step 5: Solve for x
    x = 6,878,296,558,571,399/120,066,309.86
  6. Step 6: Final answer
    x = 57,287,481.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.