Home / 779,576,520.49-1,169,512,263.81-313,274,243.86

Finding the Fourth Proportional to 779,576,520.49, 1,169,512,263.81 and 313,274,243.86

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Solution

The fourth proportional to 779,576,520.49, 1,169,512,263.81 and 313,274,243.86 is: 469,970,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,576,520.49 : 1,169,512,263.81 = 313,274,243.86 : x
  2. Step 2: Convert to fraction form
    779,576,520.49/1,169,512,263.81 = 313,274,243.86/x
  3. Step 3: Cross multiply
    779,576,520.49x = 1,169,512,263.81 × 313,274,243.86
  4. Step 4: Simplify right side
    779,576,520.49x = 366,378,070,127,150,784
  5. Step 5: Solve for x
    x = 366,378,070,127,150,784/779,576,520.49
  6. Step 6: Final answer
    x = 469,970,632.13

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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.