Home / 387,367,231.76-534,562,428.65-211,151,360.68

Finding the Fourth Proportional to 387,367,231.76, 534,562,428.65 and 211,151,360.68

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Solution

The fourth proportional to 387,367,231.76, 534,562,428.65 and 211,151,360.68 is: 291,386,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,367,231.76 : 534,562,428.65 = 211,151,360.68 : x
  2. Step 2: Convert to fraction form
    387,367,231.76/534,562,428.65 = 211,151,360.68/x
  3. Step 3: Cross multiply
    387,367,231.76x = 534,562,428.65 × 211,151,360.68
  4. Step 4: Simplify right side
    387,367,231.76x = 112,873,584,178,264,640
  5. Step 5: Solve for x
    x = 112,873,584,178,264,640/387,367,231.76
  6. Step 6: Final answer
    x = 291,386,505.94

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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.