Home / 128,771,575.79-193,221,251.44-51,046,836.91

Finding the Fourth Proportional to 128,771,575.79, 193,221,251.44 and 51,046,836.91

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Solution

The fourth proportional to 128,771,575.79, 193,221,251.44 and 51,046,836.91 is: 76,595,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,771,575.79 : 193,221,251.44 = 51,046,836.91 : x
  2. Step 2: Convert to fraction form
    128,771,575.79/193,221,251.44 = 51,046,836.91/x
  3. Step 3: Cross multiply
    128,771,575.79x = 193,221,251.44 × 51,046,836.91
  4. Step 4: Simplify right side
    128,771,575.79x = 9,863,333,709,193,112
  5. Step 5: Solve for x
    x = 9,863,333,709,193,112/128,771,575.79
  6. Step 6: Final answer
    x = 76,595,581.35

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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.