Home / 51,321,205.02-70,823,238.39-30,694,650.78

Finding the Fourth Proportional to 51,321,205.02, 70,823,238.39 and 30,694,650.78

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Solution

The fourth proportional to 51,321,205.02, 70,823,238.39 and 30,694,650.78 is: 42,358,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,321,205.02 : 70,823,238.39 = 30,694,650.78 : x
  2. Step 2: Convert to fraction form
    51,321,205.02/70,823,238.39 = 30,694,650.78/x
  3. Step 3: Cross multiply
    51,321,205.02x = 70,823,238.39 × 30,694,650.78
  4. Step 4: Simplify right side
    51,321,205.02x = 2,173,894,569,489,739.50
  5. Step 5: Solve for x
    x = 2,173,894,569,489,739.50/51,321,205.02
  6. Step 6: Final answer
    x = 42,358,603.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.