Home / 21,808,250.67-30,090,100.39-12,386,945.86

Finding the Fourth Proportional to 21,808,250.67, 30,090,100.39 and 12,386,945.86

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Solution

The fourth proportional to 21,808,250.67, 30,090,100.39 and 12,386,945.86 is: 17,090,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,808,250.67 : 30,090,100.39 = 12,386,945.86 : x
  2. Step 2: Convert to fraction form
    21,808,250.67/30,090,100.39 = 12,386,945.86/x
  3. Step 3: Cross multiply
    21,808,250.67x = 30,090,100.39 × 12,386,945.86
  4. Step 4: Simplify right side
    21,808,250.67x = 372,724,444,452,894.88
  5. Step 5: Solve for x
    x = 372,724,444,452,894.88/21,808,250.67
  6. Step 6: Final answer
    x = 17,090,983.14

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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.