Home / 885,741,763.20-1,328,612,644.80-472,493,241.60

Finding the Fourth Proportional to 885,741,763.20, 1,328,612,644.80 and 472,493,241.60

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Solution

The fourth proportional to 885,741,763.20, 1,328,612,644.80 and 472,493,241.60 is: 708,739,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,741,763.20 : 1,328,612,644.80 = 472,493,241.60 : x
  2. Step 2: Convert to fraction form
    885,741,763.20/1,328,612,644.80 = 472,493,241.60/x
  3. Step 3: Cross multiply
    885,741,763.20x = 1,328,612,644.80 × 472,493,241.60
  4. Step 4: Simplify right side
    885,741,763.20x = 627,760,495,372,301,440
  5. Step 5: Solve for x
    x = 627,760,495,372,301,440/885,741,763.20
  6. Step 6: Final answer
    x = 708,739,862.40

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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.