Home / 487,640,262,409.73-672,791,742,129.27-281,799,511,719.03

Finding the Fourth Proportional to 487,640,262,409.73, 672,791,742,129.27 and 281,799,511,719.03

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Solution

The fourth proportional to 487,640,262,409.73, 672,791,742,129.27 and 281,799,511,719.03 is: 388,795,591,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,640,262,409.73 : 672,791,742,129.27 = 281,799,511,719.03 : x
  2. Step 2: Convert to fraction form
    487,640,262,409.73/672,791,742,129.27 = 281,799,511,719.03/x
  3. Step 3: Cross multiply
    487,640,262,409.73x = 672,791,742,129.27 × 281,799,511,719.03
  4. Step 4: Simplify right side
    487,640,262,409.73x = 189,592,384,420,623,845,163,008
  5. Step 5: Solve for x
    x = 189,592,384,420,623,845,163,008/487,640,262,409.73
  6. Step 6: Final answer
    x = 388,795,591,823.64

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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.