Home / 86,022,017.40-129,033,026.10-76,616,167.80

Finding the Fourth Proportional to 86,022,017.40, 129,033,026.10 and 76,616,167.80

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Solution

The fourth proportional to 86,022,017.40, 129,033,026.10 and 76,616,167.80 is: 114,924,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,022,017.40 : 129,033,026.10 = 76,616,167.80 : x
  2. Step 2: Convert to fraction form
    86,022,017.40/129,033,026.10 = 76,616,167.80/x
  3. Step 3: Cross multiply
    86,022,017.40x = 129,033,026.10 × 76,616,167.80
  4. Step 4: Simplify right side
    86,022,017.40x = 9,886,015,979,419,378
  5. Step 5: Solve for x
    x = 9,886,015,979,419,378/86,022,017.40
  6. Step 6: Final answer
    x = 114,924,251.70

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1.5x scale

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.