Home / 13,172,041.60-19,745,620.80-7,784,828.80

Finding the Fourth Proportional to 13,172,041.60, 19,745,620.80 and 7,784,828.80

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Solution

The fourth proportional to 13,172,041.60, 19,745,620.80 and 7,784,828.80 is: 11,669,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,041.60 : 19,745,620.80 = 7,784,828.80 : x
  2. Step 2: Convert to fraction form
    13,172,041.60/19,745,620.80 = 7,784,828.80/x
  3. Step 3: Cross multiply
    13,172,041.60x = 19,745,620.80 × 7,784,828.80
  4. Step 4: Simplify right side
    13,172,041.60x = 153,716,277,477,719.03
  5. Step 5: Solve for x
    x = 153,716,277,477,719.03/13,172,041.60
  6. Step 6: Final answer
    x = 11,669,890.07

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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.