Home / 639,009,830.55-958,610,536.43-270,544,070.55

Finding the Fourth Proportional to 639,009,830.55, 958,610,536.43 and 270,544,070.55

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Solution

The fourth proportional to 639,009,830.55, 958,610,536.43 and 270,544,070.55 is: 405,856,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,009,830.55 : 958,610,536.43 = 270,544,070.55 : x
  2. Step 2: Convert to fraction form
    639,009,830.55/958,610,536.43 = 270,544,070.55/x
  3. Step 3: Cross multiply
    639,009,830.55x = 958,610,536.43 × 270,544,070.55
  4. Step 4: Simplify right side
    639,009,830.55x = 259,346,396,596,538,528
  5. Step 5: Solve for x
    x = 259,346,396,596,538,528/639,009,830.55
  6. Step 6: Final answer
    x = 405,856,661.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.