Home / 76,628,397.60-114,942,596.40-68,314,298.40

Finding the Fourth Proportional to 76,628,397.60, 114,942,596.40 and 68,314,298.40

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Solution

The fourth proportional to 76,628,397.60, 114,942,596.40 and 68,314,298.40 is: 102,471,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,628,397.60 : 114,942,596.40 = 68,314,298.40 : x
  2. Step 2: Convert to fraction form
    76,628,397.60/114,942,596.40 = 68,314,298.40/x
  3. Step 3: Cross multiply
    76,628,397.60x = 114,942,596.40 × 68,314,298.40
  4. Step 4: Simplify right side
    76,628,397.60x = 7,852,222,829,340,367
  5. Step 5: Solve for x
    x = 7,852,222,829,340,367/76,628,397.60
  6. Step 6: Final answer
    x = 102,471,447.60

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Double scale
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Similar ratio
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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.