Home / 20,169,870.13-30,260,968.40-12,091,838.77

Finding the Fourth Proportional to 20,169,870.13, 30,260,968.40 and 12,091,838.77

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Solution

The fourth proportional to 20,169,870.13, 30,260,968.40 and 12,091,838.77 is: 18,141,453.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,870.13 : 30,260,968.40 = 12,091,838.77 : x
  2. Step 2: Convert to fraction form
    20,169,870.13/30,260,968.40 = 12,091,838.77/x
  3. Step 3: Cross multiply
    20,169,870.13x = 30,260,968.40 × 12,091,838.77
  4. Step 4: Simplify right side
    20,169,870.13x = 365,910,750,916,864.81
  5. Step 5: Solve for x
    x = 365,910,750,916,864.81/20,169,870.13
  6. Step 6: Final answer
    x = 18,141,453.00

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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.