Home / 393,366,547.20-590,049,820.80-211,968,019.20

Finding the Fourth Proportional to 393,366,547.20, 590,049,820.80 and 211,968,019.20

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Solution

The fourth proportional to 393,366,547.20, 590,049,820.80 and 211,968,019.20 is: 317,952,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,366,547.20 : 590,049,820.80 = 211,968,019.20 : x
  2. Step 2: Convert to fraction form
    393,366,547.20/590,049,820.80 = 211,968,019.20/x
  3. Step 3: Cross multiply
    393,366,547.20x = 590,049,820.80 × 211,968,019.20
  4. Step 4: Simplify right side
    393,366,547.20x = 125,071,691,744,290,944
  5. Step 5: Solve for x
    x = 125,071,691,744,290,944/393,366,547.20
  6. Step 6: Final answer
    x = 317,952,028.80

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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.