Home / 1,145,032,914.80-1,717,549,372.20-408,933,985.70

Finding the Fourth Proportional to 1,145,032,914.80, 1,717,549,372.20 and 408,933,985.70

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Solution

The fourth proportional to 1,145,032,914.80, 1,717,549,372.20 and 408,933,985.70 is: 613,400,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,032,914.80 : 1,717,549,372.20 = 408,933,985.70 : x
  2. Step 2: Convert to fraction form
    1,145,032,914.80/1,717,549,372.20 = 408,933,985.70/x
  3. Step 3: Cross multiply
    1,145,032,914.80x = 1,717,549,372.20 × 408,933,985.70
  4. Step 4: Simplify right side
    1,145,032,914.80x = 702,364,310,410,278,784
  5. Step 5: Solve for x
    x = 702,364,310,410,278,784/1,145,032,914.80
  6. Step 6: Final answer
    x = 613,400,978.55

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Double scale
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Similar ratio
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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.