Home / 20,938,931.84-28,895,771.04-11,771,649.92

Finding the Fourth Proportional to 20,938,931.84, 28,895,771.04 and 11,771,649.92

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Solution

The fourth proportional to 20,938,931.84, 28,895,771.04 and 11,771,649.92 is: 16,244,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,938,931.84 : 28,895,771.04 = 11,771,649.92 : x
  2. Step 2: Convert to fraction form
    20,938,931.84/28,895,771.04 = 11,771,649.92/x
  3. Step 3: Cross multiply
    20,938,931.84x = 28,895,771.04 × 11,771,649.92
  4. Step 4: Simplify right side
    20,938,931.84x = 340,150,900,851,354.31
  5. Step 5: Solve for x
    x = 340,150,900,851,354.31/20,938,931.84
  6. Step 6: Final answer
    x = 16,244,902.24

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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.