Home / 1,721,578,118.40-2,578,540,802.40-1,491,995,606.40

Finding the Fourth Proportional to 1,721,578,118.40, 2,578,540,802.40 and 1,491,995,606.40

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Solution

The fourth proportional to 1,721,578,118.40, 2,578,540,802.40 and 1,491,995,606.40 is: 2,234,677,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,578,118.40 : 2,578,540,802.40 = 1,491,995,606.40 : x
  2. Step 2: Convert to fraction form
    1,721,578,118.40/2,578,540,802.40 = 1,491,995,606.40/x
  3. Step 3: Cross multiply
    1,721,578,118.40x = 2,578,540,802.40 × 1,491,995,606.40
  4. Step 4: Simplify right side
    1,721,578,118.40x = 3,847,171,548,103,930,880
  5. Step 5: Solve for x
    x = 3,847,171,548,103,930,880/1,721,578,118.40
  6. Step 6: Final answer
    x = 2,234,677,303.91

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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.