Home / 358,419,345.35-537,685,705.06-128,383,337.03

Finding the Fourth Proportional to 358,419,345.35, 537,685,705.06 and 128,383,337.03

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Solution

The fourth proportional to 358,419,345.35, 537,685,705.06 and 128,383,337.03 is: 192,595,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,419,345.35 : 537,685,705.06 = 128,383,337.03 : x
  2. Step 2: Convert to fraction form
    358,419,345.35/537,685,705.06 = 128,383,337.03/x
  3. Step 3: Cross multiply
    358,419,345.35x = 537,685,705.06 × 128,383,337.03
  4. Step 4: Simplify right side
    358,419,345.35x = 69,029,885,086,242,720
  5. Step 5: Solve for x
    x = 69,029,885,086,242,720/358,419,345.35
  6. Step 6: Final answer
    x = 192,595,310.45

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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.