Home / 879,688,310.88-1,213,899,073.20-508,434,388.32

Finding the Fourth Proportional to 879,688,310.88, 1,213,899,073.20 and 508,434,388.32

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Solution

The fourth proportional to 879,688,310.88, 1,213,899,073.20 and 508,434,388.32 is: 701,598,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,688,310.88 : 1,213,899,073.20 = 508,434,388.32 : x
  2. Step 2: Convert to fraction form
    879,688,310.88/1,213,899,073.20 = 508,434,388.32/x
  3. Step 3: Cross multiply
    879,688,310.88x = 1,213,899,073.20 × 508,434,388.32
  4. Step 4: Simplify right side
    879,688,310.88x = 617,188,032,764,656,896
  5. Step 5: Solve for x
    x = 617,188,032,764,656,896/879,688,310.88
  6. Step 6: Final answer
    x = 701,598,537.95

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1.5x scale

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.