Home / 873,245,840.40-1,309,868,760.60-861,766,714.80

Finding the Fourth Proportional to 873,245,840.40, 1,309,868,760.60 and 861,766,714.80

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Solution

The fourth proportional to 873,245,840.40, 1,309,868,760.60 and 861,766,714.80 is: 1,292,650,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,245,840.40 : 1,309,868,760.60 = 861,766,714.80 : x
  2. Step 2: Convert to fraction form
    873,245,840.40/1,309,868,760.60 = 861,766,714.80/x
  3. Step 3: Cross multiply
    873,245,840.40x = 1,309,868,760.60 × 861,766,714.80
  4. Step 4: Simplify right side
    873,245,840.40x = 1,128,801,298,641,409,536
  5. Step 5: Solve for x
    x = 1,128,801,298,641,409,536/873,245,840.40
  6. Step 6: Final answer
    x = 1,292,650,072.20

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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.