Home / 809,679,064.71-1,214,966,751.24-395,159,319.65

Finding the Fourth Proportional to 809,679,064.71, 1,214,966,751.24 and 395,159,319.65

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Solution

The fourth proportional to 809,679,064.71, 1,214,966,751.24 and 395,159,319.65 is: 592,957,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,679,064.71 : 1,214,966,751.24 = 395,159,319.65 : x
  2. Step 2: Convert to fraction form
    809,679,064.71/1,214,966,751.24 = 395,159,319.65/x
  3. Step 3: Cross multiply
    809,679,064.71x = 1,214,966,751.24 × 395,159,319.65
  4. Step 4: Simplify right side
    809,679,064.71x = 480,105,434,817,369,152
  5. Step 5: Solve for x
    x = 480,105,434,817,369,152/809,679,064.71
  6. Step 6: Final answer
    x = 592,957,698.60

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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.