Home / 28,085,345.60-42,128,018.40-17,267,568.80

Finding the Fourth Proportional to 28,085,345.60, 42,128,018.40 and 17,267,568.80

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Solution

The fourth proportional to 28,085,345.60, 42,128,018.40 and 17,267,568.80 is: 25,901,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,345.60 : 42,128,018.40 = 17,267,568.80 : x
  2. Step 2: Convert to fraction form
    28,085,345.60/42,128,018.40 = 17,267,568.80/x
  3. Step 3: Cross multiply
    28,085,345.60x = 42,128,018.40 × 17,267,568.80
  4. Step 4: Simplify right side
    28,085,345.60x = 727,448,456,129,665.88
  5. Step 5: Solve for x
    x = 727,448,456,129,665.88/28,085,345.60
  6. Step 6: Final answer
    x = 25,901,353.20

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1.5x scale

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.