Home / 12,261,928.80-16,920,191.34-7,551,579

Finding the Fourth Proportional to 12,261,928.80, 16,920,191.34 and 7,551,579

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Solution

The fourth proportional to 12,261,928.80, 16,920,191.34 and 7,551,579 is: 10,420,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261,928.80 : 16,920,191.34 = 7,551,579 : x
  2. Step 2: Convert to fraction form
    12,261,928.80/16,920,191.34 = 7,551,579/x
  3. Step 3: Cross multiply
    12,261,928.80x = 16,920,191.34 × 7,551,579
  4. Step 4: Simplify right side
    12,261,928.80x = 127,774,161,599,125.86
  5. Step 5: Solve for x
    x = 127,774,161,599,125.86/12,261,928.80
  6. Step 6: Final answer
    x = 10,420,396.63

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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.