Home / 1,327,644,014.40-1,991,466,021.60-561,639,585.60

Finding the Fourth Proportional to 1,327,644,014.40, 1,991,466,021.60 and 561,639,585.60

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Solution

The fourth proportional to 1,327,644,014.40, 1,991,466,021.60 and 561,639,585.60 is: 842,459,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,644,014.40 : 1,991,466,021.60 = 561,639,585.60 : x
  2. Step 2: Convert to fraction form
    1,327,644,014.40/1,991,466,021.60 = 561,639,585.60/x
  3. Step 3: Cross multiply
    1,327,644,014.40x = 1,991,466,021.60 × 561,639,585.60
  4. Step 4: Simplify right side
    1,327,644,014.40x = 1,118,486,151,107,904,640
  5. Step 5: Solve for x
    x = 1,118,486,151,107,904,640/1,327,644,014.40
  6. Step 6: Final answer
    x = 842,459,378.40

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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.