Home / 835,845,054.87-1,153,397,613.45-492,072,651.72

Finding the Fourth Proportional to 835,845,054.87, 1,153,397,613.45 and 492,072,651.72

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Solution

The fourth proportional to 835,845,054.87, 1,153,397,613.45 and 492,072,651.72 is: 679,019,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,845,054.87 : 1,153,397,613.45 = 492,072,651.72 : x
  2. Step 2: Convert to fraction form
    835,845,054.87/1,153,397,613.45 = 492,072,651.72/x
  3. Step 3: Cross multiply
    835,845,054.87x = 1,153,397,613.45 × 492,072,651.72
  4. Step 4: Simplify right side
    835,845,054.87x = 567,555,422,137,861,120
  5. Step 5: Solve for x
    x = 567,555,422,137,861,120/835,845,054.87
  6. Step 6: Final answer
    x = 679,019,895.89

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1.5x scale

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.