Home / 398,582,786.20-597,874,179.30-358,272,002.20

Finding the Fourth Proportional to 398,582,786.20, 597,874,179.30 and 358,272,002.20

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Solution

The fourth proportional to 398,582,786.20, 597,874,179.30 and 358,272,002.20 is: 537,408,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,582,786.20 : 597,874,179.30 = 358,272,002.20 : x
  2. Step 2: Convert to fraction form
    398,582,786.20/597,874,179.30 = 358,272,002.20/x
  3. Step 3: Cross multiply
    398,582,786.20x = 597,874,179.30 × 358,272,002.20
  4. Step 4: Simplify right side
    398,582,786.20x = 214,201,579,281,492,768
  5. Step 5: Solve for x
    x = 214,201,579,281,492,768/398,582,786.20
  6. Step 6: Final answer
    x = 537,408,003.30

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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.