Home / 876,131,488,409.56-1,209,068,553,012.80-485,504,577,128.52

Finding the Fourth Proportional to 876,131,488,409.56, 1,209,068,553,012.80 and 485,504,577,128.52

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Solution

The fourth proportional to 876,131,488,409.56, 1,209,068,553,012.80 and 485,504,577,128.52 is: 670,000,250,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,131,488,409.56 : 1,209,068,553,012.80 = 485,504,577,128.52 : x
  2. Step 2: Convert to fraction form
    876,131,488,409.56/1,209,068,553,012.80 = 485,504,577,128.52/x
  3. Step 3: Cross multiply
    876,131,488,409.56x = 1,209,068,553,012.80 × 485,504,577,128.52
  4. Step 4: Simplify right side
    876,131,488,409.56x = 587,008,316,549,871,089,745,920
  5. Step 5: Solve for x
    x = 587,008,316,549,871,089,745,920/876,131,488,409.56
  6. Step 6: Final answer
    x = 670,000,250,322.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.