Home / 885,456,412.80-1,328,184,619.20-272,039,654.40

Finding the Fourth Proportional to 885,456,412.80, 1,328,184,619.20 and 272,039,654.40

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Solution

The fourth proportional to 885,456,412.80, 1,328,184,619.20 and 272,039,654.40 is: 408,059,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,456,412.80 : 1,328,184,619.20 = 272,039,654.40 : x
  2. Step 2: Convert to fraction form
    885,456,412.80/1,328,184,619.20 = 272,039,654.40/x
  3. Step 3: Cross multiply
    885,456,412.80x = 1,328,184,619.20 × 272,039,654.40
  4. Step 4: Simplify right side
    885,456,412.80x = 361,318,884,786,563,584
  5. Step 5: Solve for x
    x = 361,318,884,786,563,584/885,456,412.80
  6. Step 6: Final answer
    x = 408,059,481.60

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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.