Home / 885,735,936.80-1,328,603,905.20-272,240,446.40

Finding the Fourth Proportional to 885,735,936.80, 1,328,603,905.20 and 272,240,446.40

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Solution

The fourth proportional to 885,735,936.80, 1,328,603,905.20 and 272,240,446.40 is: 408,360,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,735,936.80 : 1,328,603,905.20 = 272,240,446.40 : x
  2. Step 2: Convert to fraction form
    885,735,936.80/1,328,603,905.20 = 272,240,446.40/x
  3. Step 3: Cross multiply
    885,735,936.80x = 1,328,603,905.20 × 272,240,446.40
  4. Step 4: Simplify right side
    885,735,936.80x = 361,699,720,240,431,232
  5. Step 5: Solve for x
    x = 361,699,720,240,431,232/885,735,936.80
  6. Step 6: Final answer
    x = 408,360,669.60

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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.