Home / 528,750,781,212.91-729,678,549,074.86-300,392,553,832.24

Finding the Fourth Proportional to 528,750,781,212.91, 729,678,549,074.86 and 300,392,553,832.24

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Solution

The fourth proportional to 528,750,781,212.91, 729,678,549,074.86 and 300,392,553,832.24 is: 414,543,128,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,750,781,212.91 : 729,678,549,074.86 = 300,392,553,832.24 : x
  2. Step 2: Convert to fraction form
    528,750,781,212.91/729,678,549,074.86 = 300,392,553,832.24/x
  3. Step 3: Cross multiply
    528,750,781,212.91x = 729,678,549,074.86 × 300,392,553,832.24
  4. Step 4: Simplify right side
    528,750,781,212.91x = 219,190,002,833,200,659,824,640
  5. Step 5: Solve for x
    x = 219,190,002,833,200,659,824,640/528,750,781,212.91
  6. Step 6: Final answer
    x = 414,543,128,107.34

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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.