Home / 1,399,682,431.40-2,099,523,647.10-430,208,076.20

Finding the Fourth Proportional to 1,399,682,431.40, 2,099,523,647.10 and 430,208,076.20

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Solution

The fourth proportional to 1,399,682,431.40, 2,099,523,647.10 and 430,208,076.20 is: 645,312,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,682,431.40 : 2,099,523,647.10 = 430,208,076.20 : x
  2. Step 2: Convert to fraction form
    1,399,682,431.40/2,099,523,647.10 = 430,208,076.20/x
  3. Step 3: Cross multiply
    1,399,682,431.40x = 2,099,523,647.10 × 430,208,076.20
  4. Step 4: Simplify right side
    1,399,682,431.40x = 903,232,029,155,298,688
  5. Step 5: Solve for x
    x = 903,232,029,155,298,688/1,399,682,431.40
  6. Step 6: Final answer
    x = 645,312,114.30

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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.