Home / 556,652,556.09-768,159,482.31-309,149,853.57

Finding the Fourth Proportional to 556,652,556.09, 768,159,482.31 and 309,149,853.57

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Solution

The fourth proportional to 556,652,556.09, 768,159,482.31 and 309,149,853.57 is: 426,615,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,556.09 : 768,159,482.31 = 309,149,853.57 : x
  2. Step 2: Convert to fraction form
    556,652,556.09/768,159,482.31 = 309,149,853.57/x
  3. Step 3: Cross multiply
    556,652,556.09x = 768,159,482.31 × 309,149,853.57
  4. Step 4: Simplify right side
    556,652,556.09x = 237,476,391,474,543,488
  5. Step 5: Solve for x
    x = 237,476,391,474,543,488/556,652,556.09
  6. Step 6: Final answer
    x = 426,615,110.05

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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.