Home / 84,989,116.40-127,483,674.60-54,378,114.80

Finding the Fourth Proportional to 84,989,116.40, 127,483,674.60 and 54,378,114.80

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Solution

The fourth proportional to 84,989,116.40, 127,483,674.60 and 54,378,114.80 is: 81,567,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989,116.40 : 127,483,674.60 = 54,378,114.80 : x
  2. Step 2: Convert to fraction form
    84,989,116.40/127,483,674.60 = 54,378,114.80/x
  3. Step 3: Cross multiply
    84,989,116.40x = 127,483,674.60 × 54,378,114.80
  4. Step 4: Simplify right side
    84,989,116.40x = 6,932,321,892,524,643
  5. Step 5: Solve for x
    x = 6,932,321,892,524,643/84,989,116.40
  6. Step 6: Final answer
    x = 81,567,172.20

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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.