Home / 20,662,677.80-30,994,016.70-18,430,625.60

Finding the Fourth Proportional to 20,662,677.80, 30,994,016.70 and 18,430,625.60

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Solution

The fourth proportional to 20,662,677.80, 30,994,016.70 and 18,430,625.60 is: 27,645,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,677.80 : 30,994,016.70 = 18,430,625.60 : x
  2. Step 2: Convert to fraction form
    20,662,677.80/30,994,016.70 = 18,430,625.60/x
  3. Step 3: Cross multiply
    20,662,677.80x = 30,994,016.70 × 18,430,625.60
  4. Step 4: Simplify right side
    20,662,677.80x = 571,239,117,637,847.50
  5. Step 5: Solve for x
    x = 571,239,117,637,847.50/20,662,677.80
  6. Step 6: Final answer
    x = 27,645,938.40

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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.