Home / 20,993,876.10-31,490,814.15-19,798,133.85

Finding the Fourth Proportional to 20,993,876.10, 31,490,814.15 and 19,798,133.85

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Solution

The fourth proportional to 20,993,876.10, 31,490,814.15 and 19,798,133.85 is: 29,697,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,876.10 : 31,490,814.15 = 19,798,133.85 : x
  2. Step 2: Convert to fraction form
    20,993,876.10/31,490,814.15 = 19,798,133.85/x
  3. Step 3: Cross multiply
    20,993,876.10x = 31,490,814.15 × 19,798,133.85
  4. Step 4: Simplify right side
    20,993,876.10x = 623,459,353,587,174
  5. Step 5: Solve for x
    x = 623,459,353,587,174/20,993,876.10
  6. Step 6: Final answer
    x = 29,697,200.78

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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.