Home / 809,679,063.71-1,214,966,749.74-395,159,318.65

Finding the Fourth Proportional to 809,679,063.71, 1,214,966,749.74 and 395,159,318.65

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Solution

The fourth proportional to 809,679,063.71, 1,214,966,749.74 and 395,159,318.65 is: 592,957,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,679,063.71 : 1,214,966,749.74 = 395,159,318.65 : x
  2. Step 2: Convert to fraction form
    809,679,063.71/1,214,966,749.74 = 395,159,318.65/x
  3. Step 3: Cross multiply
    809,679,063.71x = 1,214,966,749.74 × 395,159,318.65
  4. Step 4: Simplify right side
    809,679,063.71x = 480,105,433,009,663,424
  5. Step 5: Solve for x
    x = 480,105,433,009,663,424/809,679,063.71
  6. Step 6: Final answer
    x = 592,957,697.10

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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.