Home / 20,993,909.70-31,490,864.55-8,877,054.90

Finding the Fourth Proportional to 20,993,909.70, 31,490,864.55 and 8,877,054.90

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Solution

The fourth proportional to 20,993,909.70, 31,490,864.55 and 8,877,054.90 is: 13,315,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,909.70 : 31,490,864.55 = 8,877,054.90 : x
  2. Step 2: Convert to fraction form
    20,993,909.70/31,490,864.55 = 8,877,054.90/x
  3. Step 3: Cross multiply
    20,993,909.70x = 31,490,864.55 × 8,877,054.90
  4. Step 4: Simplify right side
    20,993,909.70x = 279,546,133,458,813.81
  5. Step 5: Solve for x
    x = 279,546,133,458,813.81/20,993,909.70
  6. Step 6: Final answer
    x = 13,315,582.35

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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.