Home / 788,531,782.51-1,088,508,918.07-491,320,868

Finding the Fourth Proportional to 788,531,782.51, 1,088,508,918.07 and 491,320,868

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Solution

The fourth proportional to 788,531,782.51, 1,088,508,918.07 and 491,320,868 is: 678,231,566.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,531,782.51 : 1,088,508,918.07 = 491,320,868 : x
  2. Step 2: Convert to fraction form
    788,531,782.51/1,088,508,918.07 = 491,320,868/x
  3. Step 3: Cross multiply
    788,531,782.51x = 1,088,508,918.07 × 491,320,868
  4. Step 4: Simplify right side
    788,531,782.51x = 534,807,146,451,893,248
  5. Step 5: Solve for x
    x = 534,807,146,451,893,248/788,531,782.51
  6. Step 6: Final answer
    x = 678,231,566.96

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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.