Home / 18,990,588.78-26,207,038.58-10,288,761.39

Finding the Fourth Proportional to 18,990,588.78, 26,207,038.58 and 10,288,761.39

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Solution

The fourth proportional to 18,990,588.78, 26,207,038.58 and 10,288,761.39 is: 14,198,504.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990,588.78 : 26,207,038.58 = 10,288,761.39 : x
  2. Step 2: Convert to fraction form
    18,990,588.78/26,207,038.58 = 10,288,761.39/x
  3. Step 3: Cross multiply
    18,990,588.78x = 26,207,038.58 × 10,288,761.39
  4. Step 4: Simplify right side
    18,990,588.78x = 269,637,966,636,700.62
  5. Step 5: Solve for x
    x = 269,637,966,636,700.62/18,990,588.78
  6. Step 6: Final answer
    x = 14,198,504.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.