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Finding the Fourth Proportional to 556,652,560.59, 768,159,488.52 and 309,149,858.07

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Solution

The fourth proportional to 556,652,560.59, 768,159,488.52 and 309,149,858.07 is: 426,615,116.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,560.59 : 768,159,488.52 = 309,149,858.07 : x
  2. Step 2: Convert to fraction form
    556,652,560.59/768,159,488.52 = 309,149,858.07/x
  3. Step 3: Cross multiply
    556,652,560.59x = 768,159,488.52 × 309,149,858.07
  4. Step 4: Simplify right side
    556,652,560.59x = 237,476,396,851,081,792
  5. Step 5: Solve for x
    x = 237,476,396,851,081,792/556,652,560.59
  6. Step 6: Final answer
    x = 426,615,116.26

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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.