Home / 465,444,985.60-698,167,478.40-206,385,212.80

Finding the Fourth Proportional to 465,444,985.60, 698,167,478.40 and 206,385,212.80

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Solution

The fourth proportional to 465,444,985.60, 698,167,478.40 and 206,385,212.80 is: 309,577,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,444,985.60 : 698,167,478.40 = 206,385,212.80 : x
  2. Step 2: Convert to fraction form
    465,444,985.60/698,167,478.40 = 206,385,212.80/x
  3. Step 3: Cross multiply
    465,444,985.60x = 698,167,478.40 × 206,385,212.80
  4. Step 4: Simplify right side
    465,444,985.60x = 144,091,443,599,623,408
  5. Step 5: Solve for x
    x = 144,091,443,599,623,408/465,444,985.60
  6. Step 6: Final answer
    x = 309,577,819.20

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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.