Home / 638,971,815.80-958,457,723.70-570,097,062.20

Finding the Fourth Proportional to 638,971,815.80, 958,457,723.70 and 570,097,062.20

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Solution

The fourth proportional to 638,971,815.80, 958,457,723.70 and 570,097,062.20 is: 855,145,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,971,815.80 : 958,457,723.70 = 570,097,062.20 : x
  2. Step 2: Convert to fraction form
    638,971,815.80/958,457,723.70 = 570,097,062.20/x
  3. Step 3: Cross multiply
    638,971,815.80x = 958,457,723.70 × 570,097,062.20
  4. Step 4: Simplify right side
    638,971,815.80x = 546,413,932,524,269,376
  5. Step 5: Solve for x
    x = 546,413,932,524,269,376/638,971,815.80
  6. Step 6: Final answer
    x = 855,145,593.30

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1.5x scale

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.