Home / 879,688,311.88-1,213,899,074.58-508,434,389.32

Finding the Fourth Proportional to 879,688,311.88, 1,213,899,074.58 and 508,434,389.32

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Solution

The fourth proportional to 879,688,311.88, 1,213,899,074.58 and 508,434,389.32 is: 701,598,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,688,311.88 : 1,213,899,074.58 = 508,434,389.32 : x
  2. Step 2: Convert to fraction form
    879,688,311.88/1,213,899,074.58 = 508,434,389.32/x
  3. Step 3: Cross multiply
    879,688,311.88x = 1,213,899,074.58 × 508,434,389.32
  4. Step 4: Simplify right side
    879,688,311.88x = 617,188,034,680,195,328
  5. Step 5: Solve for x
    x = 617,188,034,680,195,328/879,688,311.88
  6. Step 6: Final answer
    x = 701,598,539.33

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Double scale
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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.