Home / 86,389,668.96-129,617,139.57-51,870,140.24

Finding the Fourth Proportional to 86,389,668.96, 129,617,139.57 and 51,870,140.24

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Solution

The fourth proportional to 86,389,668.96, 129,617,139.57 and 51,870,140.24 is: 77,824,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389,668.96 : 129,617,139.57 = 51,870,140.24 : x
  2. Step 2: Convert to fraction form
    86,389,668.96/129,617,139.57 = 51,870,140.24/x
  3. Step 3: Cross multiply
    86,389,668.96x = 129,617,139.57 × 51,870,140.24
  4. Step 4: Simplify right side
    86,389,668.96x = 6,723,259,206,160,954
  5. Step 5: Solve for x
    x = 6,723,259,206,160,954/86,389,668.96
  6. Step 6: Final answer
    x = 77,824,805.76

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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.