Home / 811,770,800.88-1,120,246,778.46-440,492,832.24

Finding the Fourth Proportional to 811,770,800.88, 1,120,246,778.46 and 440,492,832.24

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Solution

The fourth proportional to 811,770,800.88, 1,120,246,778.46 and 440,492,832.24 is: 607,881,776.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,770,800.88 : 1,120,246,778.46 = 440,492,832.24 : x
  2. Step 2: Convert to fraction form
    811,770,800.88/1,120,246,778.46 = 440,492,832.24/x
  3. Step 3: Cross multiply
    811,770,800.88x = 1,120,246,778.46 × 440,492,832.24
  4. Step 4: Simplify right side
    811,770,800.88x = 493,460,676,251,581,248
  5. Step 5: Solve for x
    x = 493,460,676,251,581,248/811,770,800.88
  6. Step 6: Final answer
    x = 607,881,776.13

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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.