Home / 375,527,820.74-518,259,416.47-208,317,992.42

Finding the Fourth Proportional to 375,527,820.74, 518,259,416.47 and 208,317,992.42

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Solution

The fourth proportional to 375,527,820.74, 518,259,416.47 and 208,317,992.42 is: 287,496,039.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,527,820.74 : 518,259,416.47 = 208,317,992.42 : x
  2. Step 2: Convert to fraction form
    375,527,820.74/518,259,416.47 = 208,317,992.42/x
  3. Step 3: Cross multiply
    375,527,820.74x = 518,259,416.47 × 208,317,992.42
  4. Step 4: Simplify right side
    375,527,820.74x = 107,962,761,192,565,936
  5. Step 5: Solve for x
    x = 107,962,761,192,565,936/375,527,820.74
  6. Step 6: Final answer
    x = 287,496,039.52

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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.