Home / 85,861,908.06-118,555,941.24-65,984,187.84

Finding the Fourth Proportional to 85,861,908.06, 118,555,941.24 and 65,984,187.84

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Solution

The fourth proportional to 85,861,908.06, 118,555,941.24 and 65,984,187.84 is: 91,109,290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861,908.06 : 118,555,941.24 = 65,984,187.84 : x
  2. Step 2: Convert to fraction form
    85,861,908.06/118,555,941.24 = 65,984,187.84/x
  3. Step 3: Cross multiply
    85,861,908.06x = 118,555,941.24 × 65,984,187.84
  4. Step 4: Simplify right side
    85,861,908.06x = 7,822,817,496,328,163
  5. Step 5: Solve for x
    x = 7,822,817,496,328,163/85,861,908.06
  6. Step 6: Final answer
    x = 91,109,290.17

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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.