Home / 641,856,183.40-885,765,068.58-348,500,751.40

Finding the Fourth Proportional to 641,856,183.40, 885,765,068.58 and 348,500,751.40

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Solution

The fourth proportional to 641,856,183.40, 885,765,068.58 and 348,500,751.40 is: 480,932,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,856,183.40 : 885,765,068.58 = 348,500,751.40 : x
  2. Step 2: Convert to fraction form
    641,856,183.40/885,765,068.58 = 348,500,751.40/x
  3. Step 3: Cross multiply
    641,856,183.40x = 885,765,068.58 × 348,500,751.40
  4. Step 4: Simplify right side
    641,856,183.40x = 308,689,791,964,002,496
  5. Step 5: Solve for x
    x = 308,689,791,964,002,496/641,856,183.40
  6. Step 6: Final answer
    x = 480,932,956.55

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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.