Home / 28,616,205.60-42,909,562.80-10,656,064.80

Finding the Fourth Proportional to 28,616,205.60, 42,909,562.80 and 10,656,064.80

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Solution

The fourth proportional to 28,616,205.60, 42,909,562.80 and 10,656,064.80 is: 15,978,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,616,205.60 : 42,909,562.80 = 10,656,064.80 : x
  2. Step 2: Convert to fraction form
    28,616,205.60/42,909,562.80 = 10,656,064.80/x
  3. Step 3: Cross multiply
    28,616,205.60x = 42,909,562.80 × 10,656,064.80
  4. Step 4: Simplify right side
    28,616,205.60x = 457,247,081,736,469.44
  5. Step 5: Solve for x
    x = 457,247,081,736,469.44/28,616,205.60
  6. Step 6: Final answer
    x = 15,978,606.25

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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.