Home / 921,980,234.88-1,382,972,714.28-376,721,768.88

Finding the Fourth Proportional to 921,980,234.88, 1,382,972,714.28 and 376,721,768.88

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Solution

The fourth proportional to 921,980,234.88, 1,382,972,714.28 and 376,721,768.88 is: 565,083,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,980,234.88 : 1,382,972,714.28 = 376,721,768.88 : x
  2. Step 2: Convert to fraction form
    921,980,234.88/1,382,972,714.28 = 376,721,768.88/x
  3. Step 3: Cross multiply
    921,980,234.88x = 1,382,972,714.28 × 376,721,768.88
  4. Step 4: Simplify right side
    921,980,234.88x = 520,995,927,236,336,448
  5. Step 5: Solve for x
    x = 520,995,927,236,336,448/921,980,234.88
  6. Step 6: Final answer
    x = 565,083,618.42

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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.