Home / 86,389,666.16-129,617,135.35-51,870,137.42

Finding the Fourth Proportional to 86,389,666.16, 129,617,135.35 and 51,870,137.42

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Solution

The fourth proportional to 86,389,666.16, 129,617,135.35 and 51,870,137.42 is: 77,824,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389,666.16 : 129,617,135.35 = 51,870,137.42 : x
  2. Step 2: Convert to fraction form
    86,389,666.16/129,617,135.35 = 51,870,137.42/x
  3. Step 3: Cross multiply
    86,389,666.16x = 129,617,135.35 × 51,870,137.42
  4. Step 4: Simplify right side
    86,389,666.16x = 6,723,258,622,785,607
  5. Step 5: Solve for x
    x = 6,723,258,622,785,607/86,389,666.16
  6. Step 6: Final answer
    x = 77,824,801.53

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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.