Home / 487,640,262,411.23-672,791,742,131.35-281,799,511,720.53

Finding the Fourth Proportional to 487,640,262,411.23, 672,791,742,131.35 and 281,799,511,720.53

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Solution

The fourth proportional to 487,640,262,411.23, 672,791,742,131.35 and 281,799,511,720.53 is: 388,795,591,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,640,262,411.23 : 672,791,742,131.35 = 281,799,511,720.53 : x
  2. Step 2: Convert to fraction form
    487,640,262,411.23/672,791,742,131.35 = 281,799,511,720.53/x
  3. Step 3: Cross multiply
    487,640,262,411.23x = 672,791,742,131.35 × 281,799,511,720.53
  4. Step 4: Simplify right side
    487,640,262,411.23x = 189,592,384,422,219,190,632,448
  5. Step 5: Solve for x
    x = 189,592,384,422,219,190,632,448/487,640,262,411.23
  6. Step 6: Final answer
    x = 388,795,591,825.71

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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.