Home / 1,399,682,374.40-2,099,523,561.60-430,208,019.20

Finding the Fourth Proportional to 1,399,682,374.40, 2,099,523,561.60 and 430,208,019.20

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Solution

The fourth proportional to 1,399,682,374.40, 2,099,523,561.60 and 430,208,019.20 is: 645,312,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,682,374.40 : 2,099,523,561.60 = 430,208,019.20 : x
  2. Step 2: Convert to fraction form
    1,399,682,374.40/2,099,523,561.60 = 430,208,019.20/x
  3. Step 3: Cross multiply
    1,399,682,374.40x = 2,099,523,561.60 × 430,208,019.20
  4. Step 4: Simplify right side
    1,399,682,374.40x = 903,231,872,699,665,152
  5. Step 5: Solve for x
    x = 903,231,872,699,665,152/1,399,682,374.40
  6. Step 6: Final answer
    x = 645,312,028.80

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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.