Home / 13,178,421.60-19,767,632.40-10,188,751.20

Finding the Fourth Proportional to 13,178,421.60, 19,767,632.40 and 10,188,751.20

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Solution

The fourth proportional to 13,178,421.60, 19,767,632.40 and 10,188,751.20 is: 15,283,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,421.60 : 19,767,632.40 = 10,188,751.20 : x
  2. Step 2: Convert to fraction form
    13,178,421.60/19,767,632.40 = 10,188,751.20/x
  3. Step 3: Cross multiply
    13,178,421.60x = 19,767,632.40 × 10,188,751.20
  4. Step 4: Simplify right side
    13,178,421.60x = 201,407,488,336,658.84
  5. Step 5: Solve for x
    x = 201,407,488,336,658.84/13,178,421.60
  6. Step 6: Final answer
    x = 15,283,126.80

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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.