Home / 128,173,468.64-191,941,338.35-89,654,624.96

Finding the Fourth Proportional to 128,173,468.64, 191,941,338.35 and 89,654,624.96

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Solution

The fourth proportional to 128,173,468.64, 191,941,338.35 and 89,654,624.96 is: 134,258,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,173,468.64 : 191,941,338.35 = 89,654,624.96 : x
  2. Step 2: Convert to fraction form
    128,173,468.64/191,941,338.35 = 89,654,624.96/x
  3. Step 3: Cross multiply
    128,173,468.64x = 191,941,338.35 × 89,654,624.96
  4. Step 4: Simplify right side
    128,173,468.64x = 17,208,428,703,354,144
  5. Step 5: Solve for x
    x = 17,208,428,703,354,144/128,173,468.64
  6. Step 6: Final answer
    x = 134,258,898.40

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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.