Home / 556,652,646.32-768,159,606.80-309,149,943.80

Finding the Fourth Proportional to 556,652,646.32, 768,159,606.80 and 309,149,943.80

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Solution

The fourth proportional to 556,652,646.32, 768,159,606.80 and 309,149,943.80 is: 426,615,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,646.32 : 768,159,606.80 = 309,149,943.80 : x
  2. Step 2: Convert to fraction form
    556,652,646.32/768,159,606.80 = 309,149,943.80/x
  3. Step 3: Cross multiply
    556,652,646.32x = 768,159,606.80 × 309,149,943.80
  4. Step 4: Simplify right side
    556,652,646.32x = 237,476,499,268,582,176
  5. Step 5: Solve for x
    x = 237,476,499,268,582,176/556,652,646.32
  6. Step 6: Final answer
    x = 426,615,234.55

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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.