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Finding the Fourth Proportional to 323,406,502.80, 485,109,754.20 and 118,892,259.60

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Solution

The fourth proportional to 323,406,502.80, 485,109,754.20 and 118,892,259.60 is: 178,338,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,406,502.80 : 485,109,754.20 = 118,892,259.60 : x
  2. Step 2: Convert to fraction form
    323,406,502.80/485,109,754.20 = 118,892,259.60/x
  3. Step 3: Cross multiply
    323,406,502.80x = 485,109,754.20 × 118,892,259.60
  4. Step 4: Simplify right side
    323,406,502.80x = 57,675,794,830,838,584
  5. Step 5: Solve for x
    x = 57,675,794,830,838,584/323,406,502.80
  6. Step 6: Final answer
    x = 178,338,389.40

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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.