Home / 768,555,729.86-1,060,607,407.61-416,131,959.31

Finding the Fourth Proportional to 768,555,729.86, 1,060,607,407.61 and 416,131,959.31

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Solution

The fourth proportional to 768,555,729.86, 1,060,607,407.61 and 416,131,959.31 is: 574,262,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,555,729.86 : 1,060,607,407.61 = 416,131,959.31 : x
  2. Step 2: Convert to fraction form
    768,555,729.86/1,060,607,407.61 = 416,131,959.31/x
  3. Step 3: Cross multiply
    768,555,729.86x = 1,060,607,407.61 × 416,131,959.31
  4. Step 4: Simplify right side
    768,555,729.86x = 441,352,638,585,837,888
  5. Step 5: Solve for x
    x = 441,352,638,585,837,888/768,555,729.86
  6. Step 6: Final answer
    x = 574,262,374.79

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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.