Home / 86,206,871.70-129,310,307.55-70,901,370.90

Finding the Fourth Proportional to 86,206,871.70, 129,310,307.55 and 70,901,370.90

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Solution

The fourth proportional to 86,206,871.70, 129,310,307.55 and 70,901,370.90 is: 106,352,056.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,206,871.70 : 129,310,307.55 = 70,901,370.90 : x
  2. Step 2: Convert to fraction form
    86,206,871.70/129,310,307.55 = 70,901,370.90/x
  3. Step 3: Cross multiply
    86,206,871.70x = 129,310,307.55 × 70,901,370.90
  4. Step 4: Simplify right side
    86,206,871.70x = 9,168,278,076,795,620
  5. Step 5: Solve for x
    x = 9,168,278,076,795,620/86,206,871.70
  6. Step 6: Final answer
    x = 106,352,056.35

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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.