Home / 515,101,641.43-772,970,268.86-238,701,336.31

Finding the Fourth Proportional to 515,101,641.43, 772,970,268.86 and 238,701,336.31

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Solution

The fourth proportional to 515,101,641.43, 772,970,268.86 and 238,701,336.31 is: 358,199,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,101,641.43 : 772,970,268.86 = 238,701,336.31 : x
  2. Step 2: Convert to fraction form
    515,101,641.43/772,970,268.86 = 238,701,336.31/x
  3. Step 3: Cross multiply
    515,101,641.43x = 772,970,268.86 × 238,701,336.31
  4. Step 4: Simplify right side
    515,101,641.43x = 184,509,036,100,917,152
  5. Step 5: Solve for x
    x = 184,509,036,100,917,152/515,101,641.43
  6. Step 6: Final answer
    x = 358,199,278.09

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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.