Home / 128,760,003.60-193,140,005.40-114,427,280.40

Finding the Fourth Proportional to 128,760,003.60, 193,140,005.40 and 114,427,280.40

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Solution

The fourth proportional to 128,760,003.60, 193,140,005.40 and 114,427,280.40 is: 171,640,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,760,003.60 : 193,140,005.40 = 114,427,280.40 : x
  2. Step 2: Convert to fraction form
    128,760,003.60/193,140,005.40 = 114,427,280.40/x
  3. Step 3: Cross multiply
    128,760,003.60x = 193,140,005.40 × 114,427,280.40
  4. Step 4: Simplify right side
    128,760,003.60x = 22,100,485,554,363,316
  5. Step 5: Solve for x
    x = 22,100,485,554,363,316/128,760,003.60
  6. Step 6: Final answer
    x = 171,640,920.60

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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.