Home / 861,459,241.40-1,292,188,862.10-768,296,540.60

Finding the Fourth Proportional to 861,459,241.40, 1,292,188,862.10 and 768,296,540.60

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Solution

The fourth proportional to 861,459,241.40, 1,292,188,862.10 and 768,296,540.60 is: 1,152,444,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,459,241.40 : 1,292,188,862.10 = 768,296,540.60 : x
  2. Step 2: Convert to fraction form
    861,459,241.40/1,292,188,862.10 = 768,296,540.60/x
  3. Step 3: Cross multiply
    861,459,241.40x = 1,292,188,862.10 × 768,296,540.60
  4. Step 4: Simplify right side
    861,459,241.40x = 992,784,232,553,280,384
  5. Step 5: Solve for x
    x = 992,784,232,553,280,384/861,459,241.40
  6. Step 6: Final answer
    x = 1,152,444,810.90

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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.