Home / 20,785,785.84-31,168,032.12-11,075,931.90

Finding the Fourth Proportional to 20,785,785.84, 31,168,032.12 and 11,075,931.90

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Solution

The fourth proportional to 20,785,785.84, 31,168,032.12 and 11,075,931.90 is: 16,608,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,785.84 : 31,168,032.12 = 11,075,931.90 : x
  2. Step 2: Convert to fraction form
    20,785,785.84/31,168,032.12 = 11,075,931.90/x
  3. Step 3: Cross multiply
    20,785,785.84x = 31,168,032.12 × 11,075,931.90
  4. Step 4: Simplify right side
    20,785,785.84x = 345,215,001,218,132.62
  5. Step 5: Solve for x
    x = 345,215,001,218,132.62/20,785,785.84
  6. Step 6: Final answer
    x = 16,608,224.67

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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.