Home / 309,293,421-426,813,995.46-170,063,207.88

Finding the Fourth Proportional to 309,293,421, 426,813,995.46 and 170,063,207.88

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Solution

The fourth proportional to 309,293,421, 426,813,995.46 and 170,063,207.88 is: 234,681,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,293,421 : 426,813,995.46 = 170,063,207.88 : x
  2. Step 2: Convert to fraction form
    309,293,421/426,813,995.46 = 170,063,207.88/x
  3. Step 3: Cross multiply
    309,293,421x = 426,813,995.46 × 170,063,207.88
  4. Step 4: Simplify right side
    309,293,421x = 72,585,357,236,007,344
  5. Step 5: Solve for x
    x = 72,585,357,236,007,344/309,293,421
  6. Step 6: Final answer
    x = 234,681,219.54

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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.