Home / 487,074,441.77-672,212,828.10-296,348,999.39

Finding the Fourth Proportional to 487,074,441.77, 672,212,828.10 and 296,348,999.39

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Solution

The fourth proportional to 487,074,441.77, 672,212,828.10 and 296,348,999.39 is: 408,992,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,074,441.77 : 672,212,828.10 = 296,348,999.39 : x
  2. Step 2: Convert to fraction form
    487,074,441.77/672,212,828.10 = 296,348,999.39/x
  3. Step 3: Cross multiply
    487,074,441.77x = 672,212,828.10 × 296,348,999.39
  4. Step 4: Simplify right side
    487,074,441.77x = 199,209,598,979,714,272
  5. Step 5: Solve for x
    x = 199,209,598,979,714,272/487,074,441.77
  6. Step 6: Final answer
    x = 408,992,100.38

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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.