Home / 497,917,646.60-687,112,676-274,895,275.58

Finding the Fourth Proportional to 497,917,646.60, 687,112,676 and 274,895,275.58

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Solution

The fourth proportional to 497,917,646.60, 687,112,676 and 274,895,275.58 is: 379,347,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,917,646.60 : 687,112,676 = 274,895,275.58 : x
  2. Step 2: Convert to fraction form
    497,917,646.60/687,112,676 = 274,895,275.58/x
  3. Step 3: Cross multiply
    497,917,646.60x = 687,112,676 × 274,895,275.58
  4. Step 4: Simplify right side
    497,917,646.60x = 188,884,028,423,531,232
  5. Step 5: Solve for x
    x = 188,884,028,423,531,232/497,917,646.60
  6. Step 6: Final answer
    x = 379,347,929.75

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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.