Home / 1,078,891,780-1,617,682,335.04-423,057,106.88

Finding the Fourth Proportional to 1,078,891,780, 1,617,682,335.04 and 423,057,106.88

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Solution

The fourth proportional to 1,078,891,780, 1,617,682,335.04 and 423,057,106.88 is: 634,328,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,891,780 : 1,617,682,335.04 = 423,057,106.88 : x
  2. Step 2: Convert to fraction form
    1,078,891,780/1,617,682,335.04 = 423,057,106.88/x
  3. Step 3: Cross multiply
    1,078,891,780x = 1,617,682,335.04 × 423,057,106.88
  4. Step 4: Simplify right side
    1,078,891,780x = 684,372,008,512,905,216
  5. Step 5: Solve for x
    x = 684,372,008,512,905,216/1,078,891,780
  6. Step 6: Final answer
    x = 634,328,689.12

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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.