Home / 1,078,733,358.90-1,618,173,111.54-379,140,440.70

Finding the Fourth Proportional to 1,078,733,358.90, 1,618,173,111.54 and 379,140,440.70

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Solution

The fourth proportional to 1,078,733,358.90, 1,618,173,111.54 and 379,140,440.70 is: 568,736,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,733,358.90 : 1,618,173,111.54 = 379,140,440.70 : x
  2. Step 2: Convert to fraction form
    1,078,733,358.90/1,618,173,111.54 = 379,140,440.70/x
  3. Step 3: Cross multiply
    1,078,733,358.90x = 1,618,173,111.54 × 379,140,440.70
  4. Step 4: Simplify right side
    1,078,733,358.90x = 613,514,866,638,165,760
  5. Step 5: Solve for x
    x = 613,514,866,638,165,760/1,078,733,358.90
  6. Step 6: Final answer
    x = 568,736,343.95

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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.