Home / 1,269,596,389.80-1,904,394,584.70-349,614,719.40

Finding the Fourth Proportional to 1,269,596,389.80, 1,904,394,584.70 and 349,614,719.40

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Solution

The fourth proportional to 1,269,596,389.80, 1,904,394,584.70 and 349,614,719.40 is: 524,422,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,596,389.80 : 1,904,394,584.70 = 349,614,719.40 : x
  2. Step 2: Convert to fraction form
    1,269,596,389.80/1,904,394,584.70 = 349,614,719.40/x
  3. Step 3: Cross multiply
    1,269,596,389.80x = 1,904,394,584.70 × 349,614,719.40
  4. Step 4: Simplify right side
    1,269,596,389.80x = 665,804,378,356,770,048
  5. Step 5: Solve for x
    x = 665,804,378,356,770,048/1,269,596,389.80
  6. Step 6: Final answer
    x = 524,422,079.10

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Double scale
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Similar ratio
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1.5x scale

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.