Home / 83,017,664.40-124,526,496.60-78,314,739.60

Finding the Fourth Proportional to 83,017,664.40, 124,526,496.60 and 78,314,739.60

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Solution

The fourth proportional to 83,017,664.40, 124,526,496.60 and 78,314,739.60 is: 117,472,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,017,664.40 : 124,526,496.60 = 78,314,739.60 : x
  2. Step 2: Convert to fraction form
    83,017,664.40/124,526,496.60 = 78,314,739.60/x
  3. Step 3: Cross multiply
    83,017,664.40x = 124,526,496.60 × 78,314,739.60
  4. Step 4: Simplify right side
    83,017,664.40x = 9,752,260,154,529,284
  5. Step 5: Solve for x
    x = 9,752,260,154,529,284/83,017,664.40
  6. Step 6: Final answer
    x = 117,472,109.40

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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.