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Finding the Fourth Proportional to 885,736,279.20, 1,328,604,418.80 and 880,634,445.60

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Solution

The fourth proportional to 885,736,279.20, 1,328,604,418.80 and 880,634,445.60 is: 1,320,951,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,279.20 : 1,328,604,418.80 = 880,634,445.60 : x
  2. Step 2: Convert to fraction form
    885,736,279.20/1,328,604,418.80 = 880,634,445.60/x
  3. Step 3: Cross multiply
    885,736,279.20x = 1,328,604,418.80 × 880,634,445.60
  4. Step 4: Simplify right side
    885,736,279.20x = 1,170,014,815,771,648,256
  5. Step 5: Solve for x
    x = 1,170,014,815,771,648,256/885,736,279.20
  6. Step 6: Final answer
    x = 1,320,951,668.40

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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.