Home / 20,763,602.55-31,145,403.83-9,978,302.70

Finding the Fourth Proportional to 20,763,602.55, 31,145,403.83 and 9,978,302.70

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Solution

The fourth proportional to 20,763,602.55, 31,145,403.83 and 9,978,302.70 is: 14,967,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,602.55 : 31,145,403.83 = 9,978,302.70 : x
  2. Step 2: Convert to fraction form
    20,763,602.55/31,145,403.83 = 9,978,302.70/x
  3. Step 3: Cross multiply
    20,763,602.55x = 31,145,403.83 × 9,978,302.70
  4. Step 4: Simplify right side
    20,763,602.55x = 310,778,267,079,587.81
  5. Step 5: Solve for x
    x = 310,778,267,079,587.81/20,763,602.55
  6. Step 6: Final answer
    x = 14,967,454.05

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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.