Home / 21,235,078.40-29,303,145.60-12,066,448.64

Finding the Fourth Proportional to 21,235,078.40, 29,303,145.60 and 12,066,448.64

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Solution

The fourth proportional to 21,235,078.40, 29,303,145.60 and 12,066,448.64 is: 16,650,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,078.40 : 29,303,145.60 = 12,066,448.64 : x
  2. Step 2: Convert to fraction form
    21,235,078.40/29,303,145.60 = 12,066,448.64/x
  3. Step 3: Cross multiply
    21,235,078.40x = 29,303,145.60 × 12,066,448.64
  4. Step 4: Simplify right side
    21,235,078.40x = 353,584,901,372,842
  5. Step 5: Solve for x
    x = 353,584,901,372,842/21,235,078.40
  6. Step 6: Final answer
    x = 16,650,981.68

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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.