Home / 12,402,436.80-18,561,664.80-10,890,782.40

Finding the Fourth Proportional to 12,402,436.80, 18,561,664.80 and 10,890,782.40

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Solution

The fourth proportional to 12,402,436.80, 18,561,664.80 and 10,890,782.40 is: 16,299,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,436.80 : 18,561,664.80 = 10,890,782.40 : x
  2. Step 2: Convert to fraction form
    12,402,436.80/18,561,664.80 = 10,890,782.40/x
  3. Step 3: Cross multiply
    12,402,436.80x = 18,561,664.80 × 10,890,782.40
  4. Step 4: Simplify right side
    12,402,436.80x = 202,151,052,318,539.53
  5. Step 5: Solve for x
    x = 202,151,052,318,539.53/12,402,436.80
  6. Step 6: Final answer
    x = 16,299,301.14

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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.