Home / 927,347,918.80-1,391,021,878.20-857,276,827.60

Finding the Fourth Proportional to 927,347,918.80, 1,391,021,878.20 and 857,276,827.60

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Solution

The fourth proportional to 927,347,918.80, 1,391,021,878.20 and 857,276,827.60 is: 1,285,915,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,347,918.80 : 1,391,021,878.20 = 857,276,827.60 : x
  2. Step 2: Convert to fraction form
    927,347,918.80/1,391,021,878.20 = 857,276,827.60/x
  3. Step 3: Cross multiply
    927,347,918.80x = 1,391,021,878.20 × 857,276,827.60
  4. Step 4: Simplify right side
    927,347,918.80x = 1,192,490,822,865,489,664
  5. Step 5: Solve for x
    x = 1,192,490,822,865,489,664/927,347,918.80
  6. Step 6: Final answer
    x = 1,285,915,241.40

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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.