Home / 20,585,784.84-28,408,292.10-11,765,088.96

Finding the Fourth Proportional to 20,585,784.84, 28,408,292.10 and 11,765,088.96

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Solution

The fourth proportional to 20,585,784.84, 28,408,292.10 and 11,765,088.96 is: 16,235,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585,784.84 : 28,408,292.10 = 11,765,088.96 : x
  2. Step 2: Convert to fraction form
    20,585,784.84/28,408,292.10 = 11,765,088.96/x
  3. Step 3: Cross multiply
    20,585,784.84x = 28,408,292.10 × 11,765,088.96
  4. Step 4: Simplify right side
    20,585,784.84x = 334,226,083,758,165.25
  5. Step 5: Solve for x
    x = 334,226,083,758,165.25/20,585,784.84
  6. Step 6: Final answer
    x = 16,235,770.77

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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.