Home / 1,399,682,419.90-2,099,523,629.85-430,208,064.70

Finding the Fourth Proportional to 1,399,682,419.90, 2,099,523,629.85 and 430,208,064.70

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Solution

The fourth proportional to 1,399,682,419.90, 2,099,523,629.85 and 430,208,064.70 is: 645,312,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,682,419.90 : 2,099,523,629.85 = 430,208,064.70 : x
  2. Step 2: Convert to fraction form
    1,399,682,419.90/2,099,523,629.85 = 430,208,064.70/x
  3. Step 3: Cross multiply
    1,399,682,419.90x = 2,099,523,629.85 × 430,208,064.70
  4. Step 4: Simplify right side
    1,399,682,419.90x = 903,231,997,589,687,552
  5. Step 5: Solve for x
    x = 903,231,997,589,687,552/1,399,682,419.90
  6. Step 6: Final answer
    x = 645,312,097.05

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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.