Home / 128,122,207.05-176,807,765.45-69,383,528.00

Finding the Fourth Proportional to 128,122,207.05, 176,807,765.45 and 69,383,528.00

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Solution

The fourth proportional to 128,122,207.05, 176,807,765.45 and 69,383,528.00 is: 95,748,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,122,207.05 : 176,807,765.45 = 69,383,528.00 : x
  2. Step 2: Convert to fraction form
    128,122,207.05/176,807,765.45 = 69,383,528.00/x
  3. Step 3: Cross multiply
    128,122,207.05x = 176,807,765.45 × 69,383,528.00
  4. Step 4: Simplify right side
    128,122,207.05x = 12,267,546,544,669,956
  5. Step 5: Solve for x
    x = 12,267,546,544,669,956/128,122,207.05
  6. Step 6: Final answer
    x = 95,748,791.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.