Home / 28,085,911.80-42,132,148.20-8,918,606.40

Finding the Fourth Proportional to 28,085,911.80, 42,132,148.20 and 8,918,606.40

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Solution

The fourth proportional to 28,085,911.80, 42,132,148.20 and 8,918,606.40 is: 13,378,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,911.80 : 42,132,148.20 = 8,918,606.40 : x
  2. Step 2: Convert to fraction form
    28,085,911.80/42,132,148.20 = 8,918,606.40/x
  3. Step 3: Cross multiply
    28,085,911.80x = 42,132,148.20 × 8,918,606.40
  4. Step 4: Simplify right side
    28,085,911.80x = 375,760,046,582,268.50
  5. Step 5: Solve for x
    x = 375,760,046,582,268.50/28,085,911.80
  6. Step 6: Final answer
    x = 13,378,951.31

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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.