Home / 28,778,793.84-39,716,999.88-16,389,411.60

Finding the Fourth Proportional to 28,778,793.84, 39,716,999.88 and 16,389,411.60

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Solution

The fourth proportional to 28,778,793.84, 39,716,999.88 and 16,389,411.60 is: 22,618,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,793.84 : 39,716,999.88 = 16,389,411.60 : x
  2. Step 2: Convert to fraction form
    28,778,793.84/39,716,999.88 = 16,389,411.60/x
  3. Step 3: Cross multiply
    28,778,793.84x = 39,716,999.88 × 16,389,411.60
  4. Step 4: Simplify right side
    28,778,793.84x = 650,938,258,550,470.62
  5. Step 5: Solve for x
    x = 650,938,258,550,470.62/28,778,793.84
  6. Step 6: Final answer
    x = 22,618,677.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.