Home / 258,022,397,549.58-387,034,820,557.74-78,948,098,714.84

Finding the Fourth Proportional to 258,022,397,549.58, 387,034,820,557.74 and 78,948,098,714.84

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Solution

The fourth proportional to 258,022,397,549.58, 387,034,820,557.74 and 78,948,098,714.84 is: 118,422,522,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,022,397,549.58 : 387,034,820,557.74 = 78,948,098,714.84 : x
  2. Step 2: Convert to fraction form
    258,022,397,549.58/387,034,820,557.74 = 78,948,098,714.84/x
  3. Step 3: Cross multiply
    258,022,397,549.58x = 387,034,820,557.74 × 78,948,098,714.84
  4. Step 4: Simplify right side
    258,022,397,549.58x = 30,555,663,219,470,909,833,216
  5. Step 5: Solve for x
    x = 30,555,663,219,470,909,833,216/258,022,397,549.58
  6. Step 6: Final answer
    x = 118,422,522,655.61

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1.5x scale

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.