Home / 255,878,263.50-383,818,514.26-81,002,151.35

Finding the Fourth Proportional to 255,878,263.50, 383,818,514.26 and 81,002,151.35

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Solution

The fourth proportional to 255,878,263.50, 383,818,514.26 and 81,002,151.35 is: 121,503,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,878,263.50 : 383,818,514.26 = 81,002,151.35 : x
  2. Step 2: Convert to fraction form
    255,878,263.50/383,818,514.26 = 81,002,151.35/x
  3. Step 3: Cross multiply
    255,878,263.50x = 383,818,514.26 × 81,002,151.35
  4. Step 4: Simplify right side
    255,878,263.50x = 31,090,125,383,020,652
  5. Step 5: Solve for x
    x = 31,090,125,383,020,652/255,878,263.50
  6. Step 6: Final answer
    x = 121,503,581.26

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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.